Finding the Third Proportional to 80.88 and 123.73

Step by Step Solution

1. Step 1: Write the proportion equation
   80.88 : 123.73 = 123.73 : x
2. Step 2: Convert to fraction form
   80.88/123.73 = 123.73/x
3. Step 3: Cross multiply
   80.88x = 123.73 × 123.73
4. Step 4: Simplify right side
   80.88x = 15,308.26
5. Step 5: Solve for x
   x = 15,308.26/80.88
6. Step 6: Final answer
   x = 189.26