Finding the Third Proportional to 158,629.50 and 249,221.25

Step by Step Solution

1. Step 1: Write the proportion equation
   158,629.50 : 249,221.25 = 249,221.25 : x
2. Step 2: Convert to fraction form
   158,629.50/249,221.25 = 249,221.25/x
3. Step 3: Cross multiply
   158,629.50x = 249,221.25 × 249,221.25
4. Step 4: Simplify right side
   158,629.50x = 62,111,231,451.56
5. Step 5: Solve for x
   x = 62,111,231,451.56/158,629.50
6. Step 6: Final answer
   x = 391,549.06