Finding the Third Proportional to 1,686,790 and 3,673,078

Step by Step Solution

1. Step 1: Write the proportion equation
   1,686,790 : 3,673,078 = 3,673,078 : x
2. Step 2: Convert to fraction form
   1,686,790/3,673,078 = 3,673,078/x
3. Step 3: Cross multiply
   1,686,790x = 3,673,078 × 3,673,078
4. Step 4: Simplify right side
   1,686,790x = 13,491,501,994,084
5. Step 5: Solve for x
   x = 13,491,501,994,084/1,686,790
6. Step 6: Final answer
   x = 7,998,329.37