Finding the Third Proportional to 143,448 and 303,960

Step by Step Solution

1. Step 1: Write the proportion equation
   143,448 : 303,960 = 303,960 : x
2. Step 2: Convert to fraction form
   143,448/303,960 = 303,960/x
3. Step 3: Cross multiply
   143,448x = 303,960 × 303,960
4. Step 4: Simplify right side
   143,448x = 92,391,681,600
5. Step 5: Solve for x
   x = 92,391,681,600/143,448
6. Step 6: Final answer
   x = 644,077.87