Finding the Third Proportional to 260,665.88 and 571,153.50

Step by Step Solution

1. Step 1: Write the proportion equation
   260,665.88 : 571,153.50 = 571,153.50 : x
2. Step 2: Convert to fraction form
   260,665.88/571,153.50 = 571,153.50/x
3. Step 3: Cross multiply
   260,665.88x = 571,153.50 × 571,153.50
4. Step 4: Simplify right side
   260,665.88x = 326,216,320,562.25
5. Step 5: Solve for x
   x = 326,216,320,562.25/260,665.88
6. Step 6: Final answer
   x = 1,251,473.06