Finding the Third Proportional to 162,753 and 251,505

Step by Step Solution

1. Step 1: Write the proportion equation
   162,753 : 251,505 = 251,505 : x
2. Step 2: Convert to fraction form
   162,753/251,505 = 251,505/x
3. Step 3: Cross multiply
   162,753x = 251,505 × 251,505
4. Step 4: Simplify right side
   162,753x = 63,254,765,025
5. Step 5: Solve for x
   x = 63,254,765,025/162,753
6. Step 6: Final answer
   x = 388,654.99