Finding the Third Proportional to 115,006.50 and 243,681

Step by Step Solution

1. Step 1: Write the proportion equation
   115,006.50 : 243,681 = 243,681 : x
2. Step 2: Convert to fraction form
   115,006.50/243,681 = 243,681/x
3. Step 3: Cross multiply
   115,006.50x = 243,681 × 243,681
4. Step 4: Simplify right side
   115,006.50x = 59,380,429,761
5. Step 5: Solve for x
   x = 59,380,429,761/115,006.50
6. Step 6: Final answer
   x = 516,322.38