You could argue, per our story here, that the telecommunications stranglehold that Carlos Slim has had over Mexico, though it has made him the third richest on the planet, has blocked others from opportunities.
But the new find is a planet just a third the size of that recent record-holder, smaller even than our Solar System's smallest planet, Mercury.
BBC: Exoplanet Kepler 37b is tiniest yet - smaller than Mercury
The second and third richest men on the planet who are on a high-profile visit to India this week, are known for their The Giving Pledge campaign which asks the wealthy to commit to giving away at least half of their fortune.
And their company, now the third-largest tech firm on the planet, may be the most consistently admired commercial enterprise ever built.
They estimate that at least a third of the planet's mass is diamond - the equivalent of three times Earth's mass.
In contrast, the third Earth-like planet, Kepler 69c, orbits a star very similar to our sun (that is, hotter than Kepler 62).
The 46 marine sites inscribed on the World Heritage List constitute more than one third of all marine protected areas on the planet.
UNESCO: Detailview | United Nations Educational, Scientific and Cultural Organization
Curiosity went through its paces "flawlessly" on its third full day on the planet, mission manager Michael Watkins said Thursday.
Ah, our platinum coin plan is asking that we manage to mobilise one third of all the platinum known to be on the planet.
It is the third criterion that is being targetted by those who would see Pluto reinstated as a planet.
Jamaica suffers the planet's second-highest murder rate, and St Kitts and Nevis ranks third.
Apple apparently wants third party applications on the iPhone and iPod touch just like every other sane individual on the planet.
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