Finding the Third Proportional to 142,404 and 303,872

Step by Step Solution

1. Step 1: Write the proportion equation
   142,404 : 303,872 = 303,872 : x
2. Step 2: Convert to fraction form
   142,404/303,872 = 303,872/x
3. Step 3: Cross multiply
   142,404x = 303,872 × 303,872
4. Step 4: Simplify right side
   142,404x = 92,338,192,384
5. Step 5: Solve for x
   x = 92,338,192,384/142,404
6. Step 6: Final answer
   x = 648,424.15