Answer
$59,900\ m$
Work Step by Step
Using the Pythagorean Theorem, we have:
$${a}^2+{b}^2 = {c}^2.$$
Then
$$
c = \sqrt{a^2+b^2}= \sqrt{45800^2+ 38600^2}=59896.57\ m \approx 59,900\ m
.$$
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