Answer
$T = 3.87 \times 10^{10} K$
Work Step by Step
$T = \frac{2}{3} [\frac{K_{Avg}}{K}]$
$T = \frac{2}{3} [\frac{5.0 \times 10^6 eV}{8.62 \times 10^{-5} eV/K}]$
$T = 3.87 \times 10^{10} K$
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