Question

Àñßwer find of question nò 2

Answer 1

let the third number be x
then the proportion formed is 6:18:12:x
since product of means = product of extremes
therefore 6x=12×18
=>x=12×18/6
=>x=36
tgerfore the fourth term of the proportion is 36
therefore the proportion formed is 6:12:18:36

Answer 2

answer is in attachment