Finding the Third Proportional to 33.17 and 72.72

Step by Step Solution

1. Step 1: Write the proportion equation
   33.17 : 72.72 = 72.72 : x
2. Step 2: Convert to fraction form
   33.17/72.72 = 72.72/x
3. Step 3: Cross multiply
   33.17x = 72.72 × 72.72
4. Step 4: Simplify right side
   33.17x = 5,288.30
5. Step 5: Solve for x
   x = 5,288.30/33.17
6. Step 6: Final answer
   x = 159.43