Finding the Third Proportional to 88.31 and 134.72

Step by Step Solution

1. Step 1: Write the proportion equation
   88.31 : 134.72 = 134.72 : x
2. Step 2: Convert to fraction form
   88.31/134.72 = 134.72/x
3. Step 3: Cross multiply
   88.31x = 134.72 × 134.72
4. Step 4: Simplify right side
   88.31x = 18,149.14
5. Step 5: Solve for x
   x = 18,149.14/88.31
6. Step 6: Final answer
   x = 205.51