Finding the Third Proportional to 260,779.50 and 571,333.50

Step by Step Solution

1. Step 1: Write the proportion equation
   260,779.50 : 571,333.50 = 571,333.50 : x
2. Step 2: Convert to fraction form
   260,779.50/571,333.50 = 571,333.50/x
3. Step 3: Cross multiply
   260,779.50x = 571,333.50 × 571,333.50
4. Step 4: Simplify right side
   260,779.50x = 326,421,968,222.25
5. Step 5: Solve for x
   x = 326,421,968,222.25/260,779.50
6. Step 6: Final answer
   x = 1,251,716.37