Finding the Third Proportional to 3,591,666 and 7,980,495

Step by Step Solution

1. Step 1: Write the proportion equation
   3,591,666 : 7,980,495 = 7,980,495 : x
2. Step 2: Convert to fraction form
   3,591,666/7,980,495 = 7,980,495/x
3. Step 3: Cross multiply
   3,591,666x = 7,980,495 × 7,980,495
4. Step 4: Simplify right side
   3,591,666x = 63,688,300,445,025
5. Step 5: Solve for x
   x = 63,688,300,445,025/3,591,666
6. Step 6: Final answer
   x = 17,732,244.71