Finding the Third Proportional to 144,399 and 307,504.50

Step by Step Solution

1. Step 1: Write the proportion equation
   144,399 : 307,504.50 = 307,504.50 : x
2. Step 2: Convert to fraction form
   144,399/307,504.50 = 307,504.50/x
3. Step 3: Cross multiply
   144,399x = 307,504.50 × 307,504.50
4. Step 4: Simplify right side
   144,399x = 94,559,017,520.25
5. Step 5: Solve for x
   x = 94,559,017,520.25/144,399
6. Step 6: Final answer
   x = 654,845.38