Finding the Third Proportional to 113,890.75 and 249,231

Step by Step Solution

1. Step 1: Write the proportion equation
   113,890.75 : 249,231 = 249,231 : x
2. Step 2: Convert to fraction form
   113,890.75/249,231 = 249,231/x
3. Step 3: Cross multiply
   113,890.75x = 249,231 × 249,231
4. Step 4: Simplify right side
   113,890.75x = 62,116,091,361
5. Step 5: Solve for x
   x = 62,116,091,361/113,890.75
6. Step 6: Final answer
   x = 545,400.67