Finding the Third Proportional to 65,976 and 143,792

Step by Step Solution

1. Step 1: Write the proportion equation
   65,976 : 143,792 = 143,792 : x
2. Step 2: Convert to fraction form
   65,976/143,792 = 143,792/x
3. Step 3: Cross multiply
   65,976x = 143,792 × 143,792
4. Step 4: Simplify right side
   65,976x = 20,676,139,264
5. Step 5: Solve for x
   x = 20,676,139,264/65,976
6. Step 6: Final answer
   x = 313,388.80