Finding the Third Proportional to 2,485,009 and 5,435,281

Step by Step Solution

1. Step 1: Write the proportion equation
   2,485,009 : 5,435,281 = 5,435,281 : x
2. Step 2: Convert to fraction form
   2,485,009/5,435,281 = 5,435,281/x
3. Step 3: Cross multiply
   2,485,009x = 5,435,281 × 5,435,281
4. Step 4: Simplify right side
   2,485,009x = 29,542,279,548,961
5. Step 5: Solve for x
   x = 29,542,279,548,961/2,485,009
6. Step 6: Final answer
   x = 11,888,198.21