Finding the Third Proportional to 3,057,064 and 6,478,256

Step by Step Solution

1. Step 1: Write the proportion equation
   3,057,064 : 6,478,256 = 6,478,256 : x
2. Step 2: Convert to fraction form
   3,057,064/6,478,256 = 6,478,256/x
3. Step 3: Cross multiply
   3,057,064x = 6,478,256 × 6,478,256
4. Step 4: Simplify right side
   3,057,064x = 41,967,800,801,536
5. Step 5: Solve for x
   x = 41,967,800,801,536/3,057,064
6. Step 6: Final answer
   x = 13,728,139.42