Finding the Third Proportional to 363,686.50 and 790,325

Step by Step Solution

1. Step 1: Write the proportion equation
   363,686.50 : 790,325 = 790,325 : x
2. Step 2: Convert to fraction form
   363,686.50/790,325 = 790,325/x
3. Step 3: Cross multiply
   363,686.50x = 790,325 × 790,325
4. Step 4: Simplify right side
   363,686.50x = 624,613,605,625
5. Step 5: Solve for x
   x = 624,613,605,625/363,686.50
6. Step 6: Final answer
   x = 1,717,450.62