Finding the Third Proportional to 21.94 and 52.31

Step by Step Solution

1. Step 1: Write the proportion equation
   21.94 : 52.31 = 52.31 : x
2. Step 2: Convert to fraction form
   21.94/52.31 = 52.31/x
3. Step 3: Cross multiply
   21.94x = 52.31 × 52.31
4. Step 4: Simplify right side
   21.94x = 2,736.60
5. Step 5: Solve for x
   x = 2,736.60/21.94
6. Step 6: Final answer
   x = 124.75