Finding the Third Proportional to 144,439.50 and 337,480.50

Step by Step Solution

1. Step 1: Write the proportion equation
   144,439.50 : 337,480.50 = 337,480.50 : x
2. Step 2: Convert to fraction form
   144,439.50/337,480.50 = 337,480.50/x
3. Step 3: Cross multiply
   144,439.50x = 337,480.50 × 337,480.50
4. Step 4: Simplify right side
   144,439.50x = 113,893,087,880.25
5. Step 5: Solve for x
   x = 113,893,087,880.25/144,439.50
6. Step 6: Final answer
   x = 788,517.60