Finding the Third Proportional to 21.42 and 50.52

Step by Step Solution

1. Step 1: Write the proportion equation
   21.42 : 50.52 = 50.52 : x
2. Step 2: Convert to fraction form
   21.42/50.52 = 50.52/x
3. Step 3: Cross multiply
   21.42x = 50.52 × 50.52
4. Step 4: Simplify right side
   21.42x = 2,552.62
5. Step 5: Solve for x
   x = 2,552.62/21.42
6. Step 6: Final answer
   x = 119.16