Finding the Third Proportional to 1,240,378 and 2,679,028

Step by Step Solution

1. Step 1: Write the proportion equation
   1,240,378 : 2,679,028 = 2,679,028 : x
2. Step 2: Convert to fraction form
   1,240,378/2,679,028 = 2,679,028/x
3. Step 3: Cross multiply
   1,240,378x = 2,679,028 × 2,679,028
4. Step 4: Simplify right side
   1,240,378x = 7,177,191,024,784
5. Step 5: Solve for x
   x = 7,177,191,024,784/1,240,378
6. Step 6: Final answer
   x = 5,786,293.39