Finding the Third Proportional to 3,315,826 and 5,120,260

Step by Step Solution

1. Step 1: Write the proportion equation
   3,315,826 : 5,120,260 = 5,120,260 : x
2. Step 2: Convert to fraction form
   3,315,826/5,120,260 = 5,120,260/x
3. Step 3: Cross multiply
   3,315,826x = 5,120,260 × 5,120,260
4. Step 4: Simplify right side
   3,315,826x = 26,217,062,467,600
5. Step 5: Solve for x
   x = 26,217,062,467,600/3,315,826
6. Step 6: Final answer
   x = 7,906,646.03