$$ P(the \ space \ capsule \ will \ land \ in\ water)=\frac{Area\quad of\quad water}{Area\quad of\quad \ Earth's\quad Surface}\times 100\% $$

$$ =\frac{3.63\times10^8}{3.63\times10^8 + 1.48\times10^8}\times 100\% $$

$$ \approx 71\% $$