Finding the Third Proportional to 143,452 and 298,708

Step by Step Solution

1. Step 1: Write the proportion equation
   143,452 : 298,708 = 298,708 : x
2. Step 2: Convert to fraction form
   143,452/298,708 = 298,708/x
3. Step 3: Cross multiply
   143,452x = 298,708 × 298,708
4. Step 4: Simplify right side
   143,452x = 89,226,469,264
5. Step 5: Solve for x
   x = 89,226,469,264/143,452
6. Step 6: Final answer
   x = 621,995.30