Finding the Third Proportional to 2,254,374 and 4,587,478

Step by Step Solution

1. Step 1: Write the proportion equation
   2,254,374 : 4,587,478 = 4,587,478 : x
2. Step 2: Convert to fraction form
   2,254,374/4,587,478 = 4,587,478/x
3. Step 3: Cross multiply
   2,254,374x = 4,587,478 × 4,587,478
4. Step 4: Simplify right side
   2,254,374x = 21,044,954,400,484
5. Step 5: Solve for x
   x = 21,044,954,400,484/2,254,374
6. Step 6: Final answer
   x = 9,335,165.51