Finding the Third Proportional to 11,726,712 and 17,938,836

Step by Step Solution

1. Step 1: Write the proportion equation
   11,726,712 : 17,938,836 = 17,938,836 : x
2. Step 2: Convert to fraction form
   11,726,712/17,938,836 = 17,938,836/x
3. Step 3: Cross multiply
   11,726,712x = 17,938,836 × 17,938,836
4. Step 4: Simplify right side
   11,726,712x = 321,801,837,034,896
5. Step 5: Solve for x
   x = 321,801,837,034,896/11,726,712
6. Step 6: Final answer
   x = 27,441,778.82