Finding the Third Proportional to 2,116,638 and 3,179,727

Step by Step Solution

1. Step 1: Write the proportion equation
   2,116,638 : 3,179,727 = 3,179,727 : x
2. Step 2: Convert to fraction form
   2,116,638/3,179,727 = 3,179,727/x
3. Step 3: Cross multiply
   2,116,638x = 3,179,727 × 3,179,727
4. Step 4: Simplify right side
   2,116,638x = 10,110,663,794,529
5. Step 5: Solve for x
   x = 10,110,663,794,529/2,116,638
6. Step 6: Final answer
   x = 4,776,756.25