Finding the Third Proportional to 249,948.28 and 357,175.83

Step by Step Solution

1. Step 1: Write the proportion equation
   249,948.28 : 357,175.83 = 357,175.83 : x
2. Step 2: Convert to fraction form
   249,948.28/357,175.83 = 357,175.83/x
3. Step 3: Cross multiply
   249,948.28x = 357,175.83 × 357,175.83
4. Step 4: Simplify right side
   249,948.28x = 127,574,572,196.78
5. Step 5: Solve for x
   x = 127,574,572,196.78/249,948.28
6. Step 6: Final answer
   x = 510,403.88