Finding the Third Proportional to 1,288,684 and 2,789,756

Step by Step Solution

1. Step 1: Write the proportion equation
   1,288,684 : 2,789,756 = 2,789,756 : x
2. Step 2: Convert to fraction form
   1,288,684/2,789,756 = 2,789,756/x
3. Step 3: Cross multiply
   1,288,684x = 2,789,756 × 2,789,756
4. Step 4: Simplify right side
   1,288,684x = 7,782,738,539,536
5. Step 5: Solve for x
   x = 7,782,738,539,536/1,288,684
6. Step 6: Final answer
   x = 6,039,291.66