Finding the Third Proportional to 21.42 and 44.48

Step by Step Solution

1. Step 1: Write the proportion equation
   21.42 : 44.48 = 44.48 : x
2. Step 2: Convert to fraction form
   21.42/44.48 = 44.48/x
3. Step 3: Cross multiply
   21.42x = 44.48 × 44.48
4. Step 4: Simplify right side
   21.42x = 1,978.86
5. Step 5: Solve for x
   x = 1,978.86/21.42
6. Step 6: Final answer
   x = 92.38