Finding the Third Proportional to 20,340 and 41,976

Step by Step Solution

1. Step 1: Write the proportion equation
   20,340 : 41,976 = 41,976 : x
2. Step 2: Convert to fraction form
   20,340/41,976 = 41,976/x
3. Step 3: Cross multiply
   20,340x = 41,976 × 41,976
4. Step 4: Simplify right side
   20,340x = 1,761,984,576
5. Step 5: Solve for x
   x = 1,761,984,576/20,340
6. Step 6: Final answer
   x = 86,626.58