Finding the Third Proportional to 21,447 and 33,142

Step by Step Solution

1. Step 1: Write the proportion equation
   21,447 : 33,142 = 33,142 : x
2. Step 2: Convert to fraction form
   21,447/33,142 = 33,142/x
3. Step 3: Cross multiply
   21,447x = 33,142 × 33,142
4. Step 4: Simplify right side
   21,447x = 1,098,392,164
5. Step 5: Solve for x
   x = 1,098,392,164/21,447
6. Step 6: Final answer
   x = 51,214.26