Finding the Third Proportional to 142,447 and 303,959.50

Step by Step Solution

1. Step 1: Write the proportion equation
   142,447 : 303,959.50 = 303,959.50 : x
2. Step 2: Convert to fraction form
   142,447/303,959.50 = 303,959.50/x
3. Step 3: Cross multiply
   142,447x = 303,959.50 × 303,959.50
4. Step 4: Simplify right side
   142,447x = 92,391,377,640.25
5. Step 5: Solve for x
   x = 92,391,377,640.25/142,447
6. Step 6: Final answer
   x = 648,601.78