Finding the Third Proportional to 115,581,878 and 169,541,140

Step by Step Solution

1. Step 1: Write the proportion equation
   115,581,878 : 169,541,140 = 169,541,140 : x
2. Step 2: Convert to fraction form
   115,581,878/169,541,140 = 169,541,140/x
3. Step 3: Cross multiply
   115,581,878x = 169,541,140 × 169,541,140
4. Step 4: Simplify right side
   115,581,878x = 28,744,198,152,499,600
5. Step 5: Solve for x
   x = 28,744,198,152,499,600/115,581,878
6. Step 6: Final answer
   x = 248,691,219.16