Finding the Third Proportional to 679,078 and 1,439,105

Step by Step Solution

1. Step 1: Write the proportion equation
   679,078 : 1,439,105 = 1,439,105 : x
2. Step 2: Convert to fraction form
   679,078/1,439,105 = 1,439,105/x
3. Step 3: Cross multiply
   679,078x = 1,439,105 × 1,439,105
4. Step 4: Simplify right side
   679,078x = 2,071,023,201,025
5. Step 5: Solve for x
   x = 2,071,023,201,025/679,078
6. Step 6: Final answer
   x = 3,049,757.47