Finding the Third Proportional to 5,320,179 and 8,254,728

Step by Step Solution

1. Step 1: Write the proportion equation
   5,320,179 : 8,254,728 = 8,254,728 : x
2. Step 2: Convert to fraction form
   5,320,179/8,254,728 = 8,254,728/x
3. Step 3: Cross multiply
   5,320,179x = 8,254,728 × 8,254,728
4. Step 4: Simplify right side
   5,320,179x = 68,140,534,353,984
5. Step 5: Solve for x
   x = 68,140,534,353,984/5,320,179
6. Step 6: Final answer
   x = 12,807,940.18