Finding the Third Proportional to 21.20 and 32.59

Step by Step Solution

1. Step 1: Write the proportion equation
   21.20 : 32.59 = 32.59 : x
2. Step 2: Convert to fraction form
   21.20/32.59 = 32.59/x
3. Step 3: Cross multiply
   21.20x = 32.59 × 32.59
4. Step 4: Simplify right side
   21.20x = 1,062.10
5. Step 5: Solve for x
   x = 1,062.10/21.20
6. Step 6: Final answer
   x = 50.10