Finding the Third Proportional to 89.97 and 143.23

Step by Step Solution

1. Step 1: Write the proportion equation
   89.97 : 143.23 = 143.23 : x
2. Step 2: Convert to fraction form
   89.97/143.23 = 143.23/x
3. Step 3: Cross multiply
   89.97x = 143.23 × 143.23
4. Step 4: Simplify right side
   89.97x = 20,514.32
5. Step 5: Solve for x
   x = 20,514.32/89.97
6. Step 6: Final answer
   x = 228.02