Finding the Third Proportional to 115,123.50 and 249,561

Step by Step Solution

1. Step 1: Write the proportion equation
   115,123.50 : 249,561 = 249,561 : x
2. Step 2: Convert to fraction form
   115,123.50/249,561 = 249,561/x
3. Step 3: Cross multiply
   115,123.50x = 249,561 × 249,561
4. Step 4: Simplify right side
   115,123.50x = 62,280,692,721
5. Step 5: Solve for x
   x = 62,280,692,721/115,123.50
6. Step 6: Final answer
   x = 540,990.26