Finding the Third Proportional to 247,081.50 and 539,478

Step by Step Solution

1. Step 1: Write the proportion equation
   247,081.50 : 539,478 = 539,478 : x
2. Step 2: Convert to fraction form
   247,081.50/539,478 = 539,478/x
3. Step 3: Cross multiply
   247,081.50x = 539,478 × 539,478
4. Step 4: Simplify right side
   247,081.50x = 291,036,512,484
5. Step 5: Solve for x
   x = 291,036,512,484/247,081.50
6. Step 6: Final answer
   x = 1,177,896.82