Finding the Third Proportional to 162,456 and 251,059.50

Step by Step Solution

1. Step 1: Write the proportion equation
   162,456 : 251,059.50 = 251,059.50 : x
2. Step 2: Convert to fraction form
   162,456/251,059.50 = 251,059.50/x
3. Step 3: Cross multiply
   162,456x = 251,059.50 × 251,059.50
4. Step 4: Simplify right side
   162,456x = 63,030,872,540.25
5. Step 5: Solve for x
   x = 63,030,872,540.25/162,456
6. Step 6: Final answer
   x = 387,987.35