Finding the Third Proportional to 115,003.50 and 243,675

Step by Step Solution

1. Step 1: Write the proportion equation
   115,003.50 : 243,675 = 243,675 : x
2. Step 2: Convert to fraction form
   115,003.50/243,675 = 243,675/x
3. Step 3: Cross multiply
   115,003.50x = 243,675 × 243,675
4. Step 4: Simplify right side
   115,003.50x = 59,377,505,625
5. Step 5: Solve for x
   x = 59,377,505,625/115,003.50
6. Step 6: Final answer
   x = 516,310.42