Finding the Third Proportional to 260,074.50 and 558,948

Step by Step Solution

1. Step 1: Write the proportion equation
   260,074.50 : 558,948 = 558,948 : x
2. Step 2: Convert to fraction form
   260,074.50/558,948 = 558,948/x
3. Step 3: Cross multiply
   260,074.50x = 558,948 × 558,948
4. Step 4: Simplify right side
   260,074.50x = 312,422,866,704
5. Step 5: Solve for x
   x = 312,422,866,704/260,074.50
6. Step 6: Final answer
   x = 1,201,282.20