Finding the Third Proportional to 81.88 and 179.38

Step by Step Solution

1. Step 1: Write the proportion equation
   81.88 : 179.38 = 179.38 : x
2. Step 2: Convert to fraction form
   81.88/179.38 = 179.38/x
3. Step 3: Cross multiply
   81.88x = 179.38 × 179.38
4. Step 4: Simplify right side
   81.88x = 32,175.39
5. Step 5: Solve for x
   x = 32,175.39/81.88
6. Step 6: Final answer
   x = 392.98