Finding the Third Proportional to 2,405,129 and 5,009,266

Step by Step Solution

1. Step 1: Write the proportion equation
   2,405,129 : 5,009,266 = 5,009,266 : x
2. Step 2: Convert to fraction form
   2,405,129/5,009,266 = 5,009,266/x
3. Step 3: Cross multiply
   2,405,129x = 5,009,266 × 5,009,266
4. Step 4: Simplify right side
   2,405,129x = 25,092,745,858,756
5. Step 5: Solve for x
   x = 25,092,745,858,756/2,405,129
6. Step 6: Final answer
   x = 10,433,014.55