Finding the Third Proportional to 2,615,616 and 3,999,456

Step by Step Solution

1. Step 1: Write the proportion equation
   2,615,616 : 3,999,456 = 3,999,456 : x
2. Step 2: Convert to fraction form
   2,615,616/3,999,456 = 3,999,456/x
3. Step 3: Cross multiply
   2,615,616x = 3,999,456 × 3,999,456
4. Step 4: Simplify right side
   2,615,616x = 15,995,648,295,936
5. Step 5: Solve for x
   x = 15,995,648,295,936/2,615,616
6. Step 6: Final answer
   x = 6,115,442.14