Finding the Third Proportional to 3,591,629 and 7,980,418

Step by Step Solution

1. Step 1: Write the proportion equation
   3,591,629 : 7,980,418 = 7,980,418 : x
2. Step 2: Convert to fraction form
   3,591,629/7,980,418 = 7,980,418/x
3. Step 3: Cross multiply
   3,591,629x = 7,980,418 × 7,980,418
4. Step 4: Simplify right side
   3,591,629x = 63,687,071,454,724
5. Step 5: Solve for x
   x = 63,687,071,454,724/3,591,629
6. Step 6: Final answer
   x = 17,732,085.21