Finding the Third Proportional to 361,900 and 790,850

Step by Step Solution

1. Step 1: Write the proportion equation
   361,900 : 790,850 = 790,850 : x
2. Step 2: Convert to fraction form
   361,900/790,850 = 790,850/x
3. Step 3: Cross multiply
   361,900x = 790,850 × 790,850
4. Step 4: Simplify right side
   361,900x = 625,443,722,500
5. Step 5: Solve for x
   x = 625,443,722,500/361,900
6. Step 6: Final answer
   x = 1,728,222.50