Finding the Third Proportional to 111,849,807.75 and 243,060,372

Step by Step Solution

1. Step 1: Write the proportion equation
   111,849,807.75 : 243,060,372 = 243,060,372 : x
2. Step 2: Convert to fraction form
   111,849,807.75/243,060,372 = 243,060,372/x
3. Step 3: Cross multiply
   111,849,807.75x = 243,060,372 × 243,060,372
4. Step 4: Simplify right side
   111,849,807.75x = 59,078,344,436,778,384
5. Step 5: Solve for x
   x = 59,078,344,436,778,384/111,849,807.75
6. Step 6: Final answer
   x = 528,193,526.88