Finding the Third Proportional to 113,884.50 and 249,218

Step by Step Solution

1. Step 1: Write the proportion equation
   113,884.50 : 249,218 = 249,218 : x
2. Step 2: Convert to fraction form
   113,884.50/249,218 = 249,218/x
3. Step 3: Cross multiply
   113,884.50x = 249,218 × 249,218
4. Step 4: Simplify right side
   113,884.50x = 62,109,611,524
5. Step 5: Solve for x
   x = 62,109,611,524/113,884.50
6. Step 6: Final answer
   x = 545,373.70