Finding the Third Proportional to 648,960 and 1,394,496

Step by Step Solution

1. Step 1: Write the proportion equation
   648,960 : 1,394,496 = 1,394,496 : x
2. Step 2: Convert to fraction form
   648,960/1,394,496 = 1,394,496/x
3. Step 3: Cross multiply
   648,960x = 1,394,496 × 1,394,496
4. Step 4: Simplify right side
   648,960x = 1,944,619,094,016
5. Step 5: Solve for x
   x = 1,944,619,094,016/648,960
6. Step 6: Final answer
   x = 2,996,516.11