Finding the Third Proportional to 80.85 and 112.48

Step by Step Solution

1. Step 1: Write the proportion equation
   80.85 : 112.48 = 112.48 : x
2. Step 2: Convert to fraction form
   80.85/112.48 = 112.48/x
3. Step 3: Cross multiply
   80.85x = 112.48 × 112.48
4. Step 4: Simplify right side
   80.85x = 12,651.98
5. Step 5: Solve for x
   x = 12,651.98/80.85
6. Step 6: Final answer
   x = 156.50