Finding the Third Proportional to 83,287,140 and 129,674,470

Step by Step Solution

1. Step 1: Write the proportion equation
   83,287,140 : 129,674,470 = 129,674,470 : x
2. Step 2: Convert to fraction form
   83,287,140/129,674,470 = 129,674,470/x
3. Step 3: Cross multiply
   83,287,140x = 129,674,470 × 129,674,470
4. Step 4: Simplify right side
   83,287,140x = 16,815,468,169,780,900
5. Step 5: Solve for x
   x = 16,815,468,169,780,900/83,287,140
6. Step 6: Final answer
   x = 201,897,533.88