Finding the Third Proportional to 3,909,902 and 5,724,885

Step by Step Solution

1. Step 1: Write the proportion equation
   3,909,902 : 5,724,885 = 5,724,885 : x
2. Step 2: Convert to fraction form
   3,909,902/5,724,885 = 5,724,885/x
3. Step 3: Cross multiply
   3,909,902x = 5,724,885 × 5,724,885
4. Step 4: Simplify right side
   3,909,902x = 32,774,308,263,225
5. Step 5: Solve for x
   x = 32,774,308,263,225/3,909,902
6. Step 6: Final answer
   x = 8,382,386.12