Finding the Third Proportional to 363,291 and 539,752.50

Step by Step Solution

1. Step 1: Write the proportion equation
   363,291 : 539,752.50 = 539,752.50 : x
2. Step 2: Convert to fraction form
   363,291/539,752.50 = 539,752.50/x
3. Step 3: Cross multiply
   363,291x = 539,752.50 × 539,752.50
4. Step 4: Simplify right side
   363,291x = 291,332,761,256.25
5. Step 5: Solve for x
   x = 291,332,761,256.25/363,291
6. Step 6: Final answer
   x = 801,926.72