Finding the Third Proportional to 113,521.50 and 243,354.38

Step by Step Solution

1. Step 1: Write the proportion equation
   113,521.50 : 243,354.38 = 243,354.38 : x
2. Step 2: Convert to fraction form
   113,521.50/243,354.38 = 243,354.38/x
3. Step 3: Cross multiply
   113,521.50x = 243,354.38 × 243,354.38
4. Step 4: Simplify right side
   113,521.50x = 59,221,351,831.64
5. Step 5: Solve for x
   x = 59,221,351,831.64/113,521.50
6. Step 6: Final answer
   x = 521,675.21