Finding the Third Proportional to 1,018,612 and 2,158,648

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018,612 : 2,158,648 = 2,158,648 : x
2. Step 2: Convert to fraction form
   1,018,612/2,158,648 = 2,158,648/x
3. Step 3: Cross multiply
   1,018,612x = 2,158,648 × 2,158,648
4. Step 4: Simplify right side
   1,018,612x = 4,659,761,187,904
5. Step 5: Solve for x
   x = 4,659,761,187,904/1,018,612
6. Step 6: Final answer
   x = 4,574,618.39