Finding the Third Proportional to 2,018,857 and 3,103,128

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018,857 : 3,103,128 = 3,103,128 : x
2. Step 2: Convert to fraction form
   2,018,857/3,103,128 = 3,103,128/x
3. Step 3: Cross multiply
   2,018,857x = 3,103,128 × 3,103,128
4. Step 4: Simplify right side
   2,018,857x = 9,629,403,384,384
5. Step 5: Solve for x
   x = 9,629,403,384,384/2,018,857
6. Step 6: Final answer
   x = 4,769,730.29