Finding the Third Proportional to 72.56 and 112.22

Step by Step Solution

1. Step 1: Write the proportion equation
   72.56 : 112.22 = 112.22 : x
2. Step 2: Convert to fraction form
   72.56/112.22 = 112.22/x
3. Step 3: Cross multiply
   72.56x = 112.22 × 112.22
4. Step 4: Simplify right side
   72.56x = 12,593.05
5. Step 5: Solve for x
   x = 12,593.05/72.56
6. Step 6: Final answer
   x = 173.55