Finding the Third Proportional to 144,612 and 298,449

Step by Step Solution

1. Step 1: Write the proportion equation
   144,612 : 298,449 = 298,449 : x
2. Step 2: Convert to fraction form
   144,612/298,449 = 298,449/x
3. Step 3: Cross multiply
   144,612x = 298,449 × 298,449
4. Step 4: Simplify right side
   144,612x = 89,071,805,601
5. Step 5: Solve for x
   x = 89,071,805,601/144,612
6. Step 6: Final answer
   x = 615,936.48