Finding the Third Proportional to 2,586,638 and 3,915,738

Step by Step Solution

1. Step 1: Write the proportion equation
   2,586,638 : 3,915,738 = 3,915,738 : x
2. Step 2: Convert to fraction form
   2,586,638/3,915,738 = 3,915,738/x
3. Step 3: Cross multiply
   2,586,638x = 3,915,738 × 3,915,738
4. Step 4: Simplify right side
   2,586,638x = 15,333,004,084,644
5. Step 5: Solve for x
   x = 15,333,004,084,644/2,586,638
6. Step 6: Final answer
   x = 5,927,773.46