Finding the Third Proportional to 2,631,258 and 5,668,569

Step by Step Solution

1. Step 1: Write the proportion equation
   2,631,258 : 5,668,569 = 5,668,569 : x
2. Step 2: Convert to fraction form
   2,631,258/5,668,569 = 5,668,569/x
3. Step 3: Cross multiply
   2,631,258x = 5,668,569 × 5,668,569
4. Step 4: Simplify right side
   2,631,258x = 32,132,674,507,761
5. Step 5: Solve for x
   x = 32,132,674,507,761/2,631,258
6. Step 6: Final answer
   x = 12,211,905.68