Finding the Third Proportional to 1,683,958 and 2,638,593

Step by Step Solution

1. Step 1: Write the proportion equation
   1,683,958 : 2,638,593 = 2,638,593 : x
2. Step 2: Convert to fraction form
   1,683,958/2,638,593 = 2,638,593/x
3. Step 3: Cross multiply
   1,683,958x = 2,638,593 × 2,638,593
4. Step 4: Simplify right side
   1,683,958x = 6,962,173,019,649
5. Step 5: Solve for x
   x = 6,962,173,019,649/1,683,958
6. Step 6: Final answer
   x = 4,134,410.13