Finding the Third Proportional to 15.15 and 33.15

Step by Step Solution

1. Step 1: Write the proportion equation
   15.15 : 33.15 = 33.15 : x
2. Step 2: Convert to fraction form
   15.15/33.15 = 33.15/x
3. Step 3: Cross multiply
   15.15x = 33.15 × 33.15
4. Step 4: Simplify right side
   15.15x = 1,099.08
5. Step 5: Solve for x
   x = 1,099.08/15.15
6. Step 6: Final answer
   x = 72.54