Finding the Third Proportional to 13.72 and 33.25

Step by Step Solution

1. Step 1: Write the proportion equation
   13.72 : 33.25 = 33.25 : x
2. Step 2: Convert to fraction form
   13.72/33.25 = 33.25/x
3. Step 3: Cross multiply
   13.72x = 33.25 × 33.25
4. Step 4: Simplify right side
   13.72x = 1,105.87
5. Step 5: Solve for x
   x = 1,105.87/13.72
6. Step 6: Final answer
   x = 80.58