Finding the Third Proportional to 2,128,418 and 3,130,383

Step by Step Solution

1. Step 1: Write the proportion equation
   2,128,418 : 3,130,383 = 3,130,383 : x
2. Step 2: Convert to fraction form
   2,128,418/3,130,383 = 3,130,383/x
3. Step 3: Cross multiply
   2,128,418x = 3,130,383 × 3,130,383
4. Step 4: Simplify right side
   2,128,418x = 9,799,297,726,689
5. Step 5: Solve for x
   x = 9,799,297,726,689/2,128,418
6. Step 6: Final answer
   x = 4,604,028.78