Question

Show that 2, 12 and 72 are in continued proportion .​

Answer 1

2:12=1:6

12:72=1:6

if the ratio of first term and second term is equal to the ratio of second term and third term then it is called first term , second term and third term are in continued proportion .

as 2:12::12:72

so 2,12abd 72 are in continued proportion .