Finding the Third Proportional to 363,535.50 and 555,145.50

Step by Step Solution

1. Step 1: Write the proportion equation
   363,535.50 : 555,145.50 = 555,145.50 : x
2. Step 2: Convert to fraction form
   363,535.50/555,145.50 = 555,145.50/x
3. Step 3: Cross multiply
   363,535.50x = 555,145.50 × 555,145.50
4. Step 4: Simplify right side
   363,535.50x = 308,186,526,170.25
5. Step 5: Solve for x
   x = 308,186,526,170.25/363,535.50
6. Step 6: Final answer
   x = 847,748.09