Finding the Third Proportional to 89.23 and 134.79

Step by Step Solution

1. Step 1: Write the proportion equation
   89.23 : 134.79 = 134.79 : x
2. Step 2: Convert to fraction form
   89.23/134.79 = 134.79/x
3. Step 3: Cross multiply
   89.23x = 134.79 × 134.79
4. Step 4: Simplify right side
   89.23x = 18,168.09
5. Step 5: Solve for x
   x = 18,168.09/89.23
6. Step 6: Final answer
   x = 203.62