Finding the Third Proportional to 65,466 and 143,676

Step by Step Solution

1. Step 1: Write the proportion equation
   65,466 : 143,676 = 143,676 : x
2. Step 2: Convert to fraction form
   65,466/143,676 = 143,676/x
3. Step 3: Cross multiply
   65,466x = 143,676 × 143,676
4. Step 4: Simplify right side
   65,466x = 20,642,792,976
5. Step 5: Solve for x
   x = 20,642,792,976/65,466
6. Step 6: Final answer
   x = 315,320.82