Finding the Third Proportional to 80,638.50 and 125,280

Step by Step Solution

1. Step 1: Write the proportion equation
   80,638.50 : 125,280 = 125,280 : x
2. Step 2: Convert to fraction form
   80,638.50/125,280 = 125,280/x
3. Step 3: Cross multiply
   80,638.50x = 125,280 × 125,280
4. Step 4: Simplify right side
   80,638.50x = 15,695,078,400
5. Step 5: Solve for x
   x = 15,695,078,400/80,638.50
6. Step 6: Final answer
   x = 194,635.05