Finding the Third Proportional to 118,931.50 and 249,538.50

Step by Step Solution

1. Step 1: Write the proportion equation
   118,931.50 : 249,538.50 = 249,538.50 : x
2. Step 2: Convert to fraction form
   118,931.50/249,538.50 = 249,538.50/x
3. Step 3: Cross multiply
   118,931.50x = 249,538.50 × 249,538.50
4. Step 4: Simplify right side
   118,931.50x = 62,269,462,982.25
5. Step 5: Solve for x
   x = 62,269,462,982.25/118,931.50
6. Step 6: Final answer
   x = 523,574.18