Finding the Third Proportional to 15.40 and 33.54

Step by Step Solution

1. Step 1: Write the proportion equation
   15.40 : 33.54 = 33.54 : x
2. Step 2: Convert to fraction form
   15.40/33.54 = 33.54/x
3. Step 3: Cross multiply
   15.40x = 33.54 × 33.54
4. Step 4: Simplify right side
   15.40x = 1,124.87
5. Step 5: Solve for x
   x = 1,124.87/15.40
6. Step 6: Final answer
   x = 73.05