What should come in place of the question mark(?) in the following question?
$$2 \times 324 \times ? = 9^{2} \times 22^{2} \times6$$
Let's assume 'y' in place of the question mark.
$$2 \times 324 \times y = 9^{2} \times 22^{2} \times6$$
$$2\times324\times y=81\times484\times6$$
$$4\times y=3\times484$$
$$y=3\times121$$
y = 363
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