Finding the Third Proportional to 20,104 and 42,671

Step by Step Solution

1. Step 1: Write the proportion equation
   20,104 : 42,671 = 42,671 : x
2. Step 2: Convert to fraction form
   20,104/42,671 = 42,671/x
3. Step 3: Cross multiply
   20,104x = 42,671 × 42,671
4. Step 4: Simplify right side
   20,104x = 1,820,814,241
5. Step 5: Solve for x
   x = 1,820,814,241/20,104
6. Step 6: Final answer
   x = 90,569.75