414 × ? × 7 = 127512

Answer: Option C

Let 414 × x × 7 = 127512
Then,
$$\begin{array}{rl}& x=\frac{127512}{414\times 7}\\ & =\frac{18216}{414}\\ & =\frac{2024}{46}\\ & =\frac{1012}{23}\\ & =44\end{array}$$