Finding the Third Proportional to 336,960 and 726,144

Step by Step Solution

1. Step 1: Write the proportion equation
   336,960 : 726,144 = 726,144 : x
2. Step 2: Convert to fraction form
   336,960/726,144 = 726,144/x
3. Step 3: Cross multiply
   336,960x = 726,144 × 726,144
4. Step 4: Simplify right side
   336,960x = 527,285,108,736
5. Step 5: Solve for x
   x = 527,285,108,736/336,960
6. Step 6: Final answer
   x = 1,564,829.98