Finding the Third Proportional to 262,139.25 and 573,340.50

Step by Step Solution

1. Step 1: Write the proportion equation
   262,139.25 : 573,340.50 = 573,340.50 : x
2. Step 2: Convert to fraction form
   262,139.25/573,340.50 = 573,340.50/x
3. Step 3: Cross multiply
   262,139.25x = 573,340.50 × 573,340.50
4. Step 4: Simplify right side
   262,139.25x = 328,719,328,940.25
5. Step 5: Solve for x
   x = 328,719,328,940.25/262,139.25
6. Step 6: Final answer
   x = 1,253,987.45