Finding the Third Proportional to 260,748 and 549,517.50

Step by Step Solution

1. Step 1: Write the proportion equation
   260,748 : 549,517.50 = 549,517.50 : x
2. Step 2: Convert to fraction form
   260,748/549,517.50 = 549,517.50/x
3. Step 3: Cross multiply
   260,748x = 549,517.50 × 549,517.50
4. Step 4: Simplify right side
   260,748x = 301,969,482,806.25
5. Step 5: Solve for x
   x = 301,969,482,806.25/260,748
6. Step 6: Final answer
   x = 1,158,089.35