Finding the Third Proportional to 15.45 and 33.38

Step by Step Solution

1. Step 1: Write the proportion equation
   15.45 : 33.38 = 33.38 : x
2. Step 2: Convert to fraction form
   15.45/33.38 = 33.38/x
3. Step 3: Cross multiply
   15.45x = 33.38 × 33.38
4. Step 4: Simplify right side
   15.45x = 1,114.28
5. Step 5: Solve for x
   x = 1,114.28/15.45
6. Step 6: Final answer
   x = 72.12