Finding the Third Proportional to 15.92 and 34.55

Step by Step Solution

1. Step 1: Write the proportion equation
   15.92 : 34.55 = 34.55 : x
2. Step 2: Convert to fraction form
   15.92/34.55 = 34.55/x
3. Step 3: Cross multiply
   15.92x = 34.55 × 34.55
4. Step 4: Simplify right side
   15.92x = 1,194.03
5. Step 5: Solve for x
   x = 1,194.03/15.92
6. Step 6: Final answer
   x = 74.99