Finding the Third Proportional to 19,880 and 41,020

Step by Step Solution

1. Step 1: Write the proportion equation
   19,880 : 41,020 = 41,020 : x
2. Step 2: Convert to fraction form
   19,880/41,020 = 41,020/x
3. Step 3: Cross multiply
   19,880x = 41,020 × 41,020
4. Step 4: Simplify right side
   19,880x = 1,682,640,400
5. Step 5: Solve for x
   x = 1,682,640,400/19,880
6. Step 6: Final answer
   x = 84,639.86