Finding the Third Proportional to 1,813,676 and 3,959,716

Step by Step Solution

1. Step 1: Write the proportion equation
   1,813,676 : 3,959,716 = 3,959,716 : x
2. Step 2: Convert to fraction form
   1,813,676/3,959,716 = 3,959,716/x
3. Step 3: Cross multiply
   1,813,676x = 3,959,716 × 3,959,716
4. Step 4: Simplify right side
   1,813,676x = 15,679,350,800,656
5. Step 5: Solve for x
   x = 15,679,350,800,656/1,813,676
6. Step 6: Final answer
   x = 8,645,067.15