Finding the Third Proportional to 33.62 and 72.90

Step by Step Solution

1. Step 1: Write the proportion equation
   33.62 : 72.90 = 72.90 : x
2. Step 2: Convert to fraction form
   33.62/72.90 = 72.90/x
3. Step 3: Cross multiply
   33.62x = 72.90 × 72.90
4. Step 4: Simplify right side
   33.62x = 5,314.75
5. Step 5: Solve for x
   x = 5,314.75/33.62
6. Step 6: Final answer
   x = 158.08