Finding the Third Proportional to 80.91 and 174.47

Step by Step Solution

1. Step 1: Write the proportion equation
   80.91 : 174.47 = 174.47 : x
2. Step 2: Convert to fraction form
   80.91/174.47 = 174.47/x
3. Step 3: Cross multiply
   80.91x = 174.47 × 174.47
4. Step 4: Simplify right side
   80.91x = 30,439.34
5. Step 5: Solve for x
   x = 30,439.34/80.91
6. Step 6: Final answer
   x = 376.23