Finding the Third Proportional to 111,849,815.25 and 243,060,385.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,849,815.25 : 243,060,385.50 = 243,060,385.50 : x
2. Step 2: Convert to fraction form
   111,849,815.25/243,060,385.50 = 243,060,385.50/x
3. Step 3: Cross multiply
   111,849,815.25x = 243,060,385.50 × 243,060,385.50
4. Step 4: Simplify right side
   111,849,815.25x = 59,078,350,999,408,608
5. Step 5: Solve for x
   x = 59,078,350,999,408,608/111,849,815.25
6. Step 6: Final answer
   x = 528,193,550.14