Finding the Third Proportional to 144,629.93 and 311,401.34

Step by Step Solution

1. Step 1: Write the proportion equation
   144,629.93 : 311,401.34 = 311,401.34 : x
2. Step 2: Convert to fraction form
   144,629.93/311,401.34 = 311,401.34/x
3. Step 3: Cross multiply
   144,629.93x = 311,401.34 × 311,401.34
4. Step 4: Simplify right side
   144,629.93x = 96,970,792,023.66
5. Step 5: Solve for x
   x = 96,970,792,023.66/144,629.93
6. Step 6: Final answer
   x = 670,475.28