Finding the Third Proportional to 20.98 and 43.27

Step by Step Solution

1. Step 1: Write the proportion equation
   20.98 : 43.27 = 43.27 : x
2. Step 2: Convert to fraction form
   20.98/43.27 = 43.27/x
3. Step 3: Cross multiply
   20.98x = 43.27 × 43.27
4. Step 4: Simplify right side
   20.98x = 1,871.91
5. Step 5: Solve for x
   x = 1,871.91/20.98
6. Step 6: Final answer
   x = 89.24