Finding the Third Proportional to 1,615,626 and 3,398,388

Step by Step Solution

1. Step 1: Write the proportion equation
   1,615,626 : 3,398,388 = 3,398,388 : x
2. Step 2: Convert to fraction form
   1,615,626/3,398,388 = 3,398,388/x
3. Step 3: Cross multiply
   1,615,626x = 3,398,388 × 3,398,388
4. Step 4: Simplify right side
   1,615,626x = 11,549,040,998,544
5. Step 5: Solve for x
   x = 11,549,040,998,544/1,615,626
6. Step 6: Final answer
   x = 7,148,338.17