Finding the Third Proportional to 1,018,610 and 2,158,642

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018,610 : 2,158,642 = 2,158,642 : x
2. Step 2: Convert to fraction form
   1,018,610/2,158,642 = 2,158,642/x
3. Step 3: Cross multiply
   1,018,610x = 2,158,642 × 2,158,642
4. Step 4: Simplify right side
   1,018,610x = 4,659,735,284,164
5. Step 5: Solve for x
   x = 4,659,735,284,164/1,018,610
6. Step 6: Final answer
   x = 4,574,601.94