Finding the Third Proportional to 2,405,739 and 5,231,166

Step by Step Solution

1. Step 1: Write the proportion equation
   2,405,739 : 5,231,166 = 5,231,166 : x
2. Step 2: Convert to fraction form
   2,405,739/5,231,166 = 5,231,166/x
3. Step 3: Cross multiply
   2,405,739x = 5,231,166 × 5,231,166
4. Step 4: Simplify right side
   2,405,739x = 27,365,097,719,556
5. Step 5: Solve for x
   x = 27,365,097,719,556/2,405,739
6. Step 6: Final answer
   x = 11,374,923.76