Finding the Third Proportional to 1,324,990 and 2,859,812

Step by Step Solution

1. Step 1: Write the proportion equation
   1,324,990 : 2,859,812 = 2,859,812 : x
2. Step 2: Convert to fraction form
   1,324,990/2,859,812 = 2,859,812/x
3. Step 3: Cross multiply
   1,324,990x = 2,859,812 × 2,859,812
4. Step 4: Simplify right side
   1,324,990x = 8,178,524,675,344
5. Step 5: Solve for x
   x = 8,178,524,675,344/1,324,990
6. Step 6: Final answer
   x = 6,172,518.04