The third proportional to 7 and 63 is:
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 567.
Let the third proportional to 7 and 63 = x.
The relationship between the numbers in terms of proportion is:
⇒ 7/63 = 63/x
⇒ 7x = 63 × 63
⇒ 7x = 3969
⇒ x = 3969/7 = 567