Finding the Third Proportional to 20.25 and 43.31

Step by Step Solution

1. Step 1: Write the proportion equation
   20.25 : 43.31 = 43.31 : x
2. Step 2: Convert to fraction form
   20.25/43.31 = 43.31/x
3. Step 3: Cross multiply
   20.25x = 43.31 × 43.31
4. Step 4: Simplify right side
   20.25x = 1,875.97
5. Step 5: Solve for x
   x = 1,875.97/20.25
6. Step 6: Final answer
   x = 92.64