Finding the Third Proportional to 1,299,162 and 2,040,840

Step by Step Solution

1. Step 1: Write the proportion equation
   1,299,162 : 2,040,840 = 2,040,840 : x
2. Step 2: Convert to fraction form
   1,299,162/2,040,840 = 2,040,840/x
3. Step 3: Cross multiply
   1,299,162x = 2,040,840 × 2,040,840
4. Step 4: Simplify right side
   1,299,162x = 4,165,027,905,600
5. Step 5: Solve for x
   x = 4,165,027,905,600/1,299,162
6. Step 6: Final answer
   x = 3,205,934.21