Finding the Third Proportional to 2,551,222 and 5,508,288

Step by Step Solution

1. Step 1: Write the proportion equation
   2,551,222 : 5,508,288 = 5,508,288 : x
2. Step 2: Convert to fraction form
   2,551,222/5,508,288 = 5,508,288/x
3. Step 3: Cross multiply
   2,551,222x = 5,508,288 × 5,508,288
4. Step 4: Simplify right side
   2,551,222x = 30,341,236,690,944
5. Step 5: Solve for x
   x = 30,341,236,690,944/2,551,222
6. Step 6: Final answer
   x = 11,892,824.96