Finding the Third Proportional to 361,222.50 and 790,957.50

Step by Step Solution

1. Step 1: Write the proportion equation
   361,222.50 : 790,957.50 = 790,957.50 : x
2. Step 2: Convert to fraction form
   361,222.50/790,957.50 = 790,957.50/x
3. Step 3: Cross multiply
   361,222.50x = 790,957.50 × 790,957.50
4. Step 4: Simplify right side
   361,222.50x = 625,613,766,806.25
5. Step 5: Solve for x
   x = 625,613,766,806.25/361,222.50
6. Step 6: Final answer
   x = 1,731,934.66