Finding the Third Proportional to 162,442 and 251,042

Step by Step Solution

1. Step 1: Write the proportion equation
   162,442 : 251,042 = 251,042 : x
2. Step 2: Convert to fraction form
   162,442/251,042 = 251,042/x
3. Step 3: Cross multiply
   162,442x = 251,042 × 251,042
4. Step 4: Simplify right side
   162,442x = 63,022,085,764
5. Step 5: Solve for x
   x = 63,022,085,764/162,442
6. Step 6: Final answer
   x = 387,966.69