Finding the Third Proportional to 248,943 and 357,862.50

Step by Step Solution

1. Step 1: Write the proportion equation
   248,943 : 357,862.50 = 357,862.50 : x
2. Step 2: Convert to fraction form
   248,943/357,862.50 = 357,862.50/x
3. Step 3: Cross multiply
   248,943x = 357,862.50 × 357,862.50
4. Step 4: Simplify right side
   248,943x = 128,065,568,906.25
5. Step 5: Solve for x
   x = 128,065,568,906.25/248,943
6. Step 6: Final answer
   x = 514,437.32