Finding the Third Proportional to 208,442 and 439,850

Step by Step Solution

1. Step 1: Write the proportion equation
   208,442 : 439,850 = 439,850 : x
2. Step 2: Convert to fraction form
   208,442/439,850 = 439,850/x
3. Step 3: Cross multiply
   208,442x = 439,850 × 439,850
4. Step 4: Simplify right side
   208,442x = 193,468,022,500
5. Step 5: Solve for x
   x = 193,468,022,500/208,442
6. Step 6: Final answer
   x = 928,162.38