Finding the Third Proportional to 2,560,652 and 5,518,288

Step by Step Solution

1. Step 1: Write the proportion equation
   2,560,652 : 5,518,288 = 5,518,288 : x
2. Step 2: Convert to fraction form
   2,560,652/5,518,288 = 5,518,288/x
3. Step 3: Cross multiply
   2,560,652x = 5,518,288 × 5,518,288
4. Step 4: Simplify right side
   2,560,652x = 30,451,502,450,944
5. Step 5: Solve for x
   x = 30,451,502,450,944/2,560,652
6. Step 6: Final answer
   x = 11,892,089.38