Finding the Third Proportional to 89.25 and 136.94

Step by Step Solution

1. Step 1: Write the proportion equation
   89.25 : 136.94 = 136.94 : x
2. Step 2: Convert to fraction form
   89.25/136.94 = 136.94/x
3. Step 3: Cross multiply
   89.25x = 136.94 × 136.94
4. Step 4: Simplify right side
   89.25x = 18,751.88
5. Step 5: Solve for x
   x = 18,751.88/89.25
6. Step 6: Final answer
   x = 210.11