Finding the Third Proportional to 20,474 and 42,252

Step by Step Solution

1. Step 1: Write the proportion equation
   20,474 : 42,252 = 42,252 : x
2. Step 2: Convert to fraction form
   20,474/42,252 = 42,252/x
3. Step 3: Cross multiply
   20,474x = 42,252 × 42,252
4. Step 4: Simplify right side
   20,474x = 1,785,231,504
5. Step 5: Solve for x
   x = 1,785,231,504/20,474
6. Step 6: Final answer
   x = 87,195.05