Select the option that is related to the third number in the same way as the second number is related to the first number.

1728 : 12 :: 512 : ?

1728 : 12 :: 512 : ?

Logic: The given number is the cube of the related number (Next Number).

​1728 = 12³ (12 × 12 × 12 =1728)

Similarly,

512 = 8³ (8 × 8 × 8 = 512)

So, the missing number is 8.

Thus, the correct option is: (b)