Finding the Third Proportional to 2,561,909 and 5,544,586

Step by Step Solution

1. Step 1: Write the proportion equation
   2,561,909 : 5,544,586 = 5,544,586 : x
2. Step 2: Convert to fraction form
   2,561,909/5,544,586 = 5,544,586/x
3. Step 3: Cross multiply
   2,561,909x = 5,544,586 × 5,544,586
4. Step 4: Simplify right side
   2,561,909x = 30,742,433,911,396
5. Step 5: Solve for x
   x = 30,742,433,911,396/2,561,909
6. Step 6: Final answer
   x = 11,999,814.95