Finding the Third Proportional to 2,586,658 and 3,915,772

Step by Step Solution

1. Step 1: Write the proportion equation
   2,586,658 : 3,915,772 = 3,915,772 : x
2. Step 2: Convert to fraction form
   2,586,658/3,915,772 = 3,915,772/x
3. Step 3: Cross multiply
   2,586,658x = 3,915,772 × 3,915,772
4. Step 4: Simplify right side
   2,586,658x = 15,333,270,355,984
5. Step 5: Solve for x
   x = 15,333,270,355,984/2,586,658
6. Step 6: Final answer
   x = 5,927,830.57