Finding the Third Proportional to 123,727.50 and 249,373.69

Step by Step Solution

1. Step 1: Write the proportion equation
   123,727.50 : 249,373.69 = 249,373.69 : x
2. Step 2: Convert to fraction form
   123,727.50/249,373.69 = 249,373.69/x
3. Step 3: Cross multiply
   123,727.50x = 249,373.69 × 249,373.69
4. Step 4: Simplify right side
   123,727.50x = 62,187,236,017.35
5. Step 5: Solve for x
   x = 62,187,236,017.35/123,727.50
6. Step 6: Final answer
   x = 502,614.50