Column I

\( \left(7 \times 8 \times 2\right) = 112 \) = bottom left number

Column II

\( \left(5 \times 4 \times 8\right) = 160 \) = bottom middle number

Column III

\( \left(3 \times 9 \times ?\right) = 0 \) = bottom right number

\( ? = \frac{162}{3 \times 9} = 6 \)

Therefore, ? = 6.