Finding the Third Proportional to 1,686,789 and 3,673,077

Step by Step Solution

1. Step 1: Write the proportion equation
   1,686,789 : 3,673,077 = 3,673,077 : x
2. Step 2: Convert to fraction form
   1,686,789/3,673,077 = 3,673,077/x
3. Step 3: Cross multiply
   1,686,789x = 3,673,077 × 3,673,077
4. Step 4: Simplify right side
   1,686,789x = 13,491,494,647,929
5. Step 5: Solve for x
   x = 13,491,494,647,929/1,686,789
6. Step 6: Final answer
   x = 7,998,329.75