Finding the Third Proportional to 21.59 and 33.47

Step by Step Solution

1. Step 1: Write the proportion equation
   21.59 : 33.47 = 33.47 : x
2. Step 2: Convert to fraction form
   21.59/33.47 = 33.47/x
3. Step 3: Cross multiply
   21.59x = 33.47 × 33.47
4. Step 4: Simplify right side
   21.59x = 1,120.45
5. Step 5: Solve for x
   x = 1,120.45/21.59
6. Step 6: Final answer
   x = 51.91