Finding the Third Proportional to 3,448,821 and 7,317,870

Step by Step Solution

1. Step 1: Write the proportion equation
   3,448,821 : 7,317,870 = 7,317,870 : x
2. Step 2: Convert to fraction form
   3,448,821/7,317,870 = 7,317,870/x
3. Step 3: Cross multiply
   3,448,821x = 7,317,870 × 7,317,870
4. Step 4: Simplify right side
   3,448,821x = 53,551,221,336,900
5. Step 5: Solve for x
   x = 53,551,221,336,900/3,448,821
6. Step 6: Final answer
   x = 15,527,399.46