Finding the Third Proportional to 1,439,680 and 3,149,734

Step by Step Solution

1. Step 1: Write the proportion equation
   1,439,680 : 3,149,734 = 3,149,734 : x
2. Step 2: Convert to fraction form
   1,439,680/3,149,734 = 3,149,734/x
3. Step 3: Cross multiply
   1,439,680x = 3,149,734 × 3,149,734
4. Step 4: Simplify right side
   1,439,680x = 9,920,824,270,756
5. Step 5: Solve for x
   x = 9,920,824,270,756/1,439,680
6. Step 6: Final answer
   x = 6,890,992.63