Finding the Third Proportional to 72.97 and 112.86

Step by Step Solution

1. Step 1: Write the proportion equation
   72.97 : 112.86 = 112.86 : x
2. Step 2: Convert to fraction form
   72.97/112.86 = 112.86/x
3. Step 3: Cross multiply
   72.97x = 112.86 × 112.86
4. Step 4: Simplify right side
   72.97x = 12,737.24
5. Step 5: Solve for x
   x = 12,737.24/72.97
6. Step 6: Final answer
   x = 174.56