Finding the Third Proportional to 1,240,384 and 2,679,040

Step by Step Solution

1. Step 1: Write the proportion equation
   1,240,384 : 2,679,040 = 2,679,040 : x
2. Step 2: Convert to fraction form
   1,240,384/2,679,040 = 2,679,040/x
3. Step 3: Cross multiply
   1,240,384x = 2,679,040 × 2,679,040
4. Step 4: Simplify right side
   1,240,384x = 7,177,255,321,600
5. Step 5: Solve for x
   x = 7,177,255,321,600/1,240,384
6. Step 6: Final answer
   x = 5,786,317.24