Finding the Third Proportional to 2,631,812 and 5,739,578

Step by Step Solution

1. Step 1: Write the proportion equation
   2,631,812 : 5,739,578 = 5,739,578 : x
2. Step 2: Convert to fraction form
   2,631,812/5,739,578 = 5,739,578/x
3. Step 3: Cross multiply
   2,631,812x = 5,739,578 × 5,739,578
4. Step 4: Simplify right side
   2,631,812x = 32,942,755,618,084
5. Step 5: Solve for x
   x = 32,942,755,618,084/2,631,812
6. Step 6: Final answer
   x = 12,517,138.62