Finding the Third Proportional to 113,921.25 and 249,287.25

Step by Step Solution

1. Step 1: Write the proportion equation
   113,921.25 : 249,287.25 = 249,287.25 : x
2. Step 2: Convert to fraction form
   113,921.25/249,287.25 = 249,287.25/x
3. Step 3: Cross multiply
   113,921.25x = 249,287.25 × 249,287.25
4. Step 4: Simplify right side
   113,921.25x = 62,144,133,012.56
5. Step 5: Solve for x
   x = 62,144,133,012.56/113,921.25
6. Step 6: Final answer
   x = 545,500.80