Finding the Third Proportional to 613,668 and 1,338,900

Step by Step Solution

1. Step 1: Write the proportion equation
   613,668 : 1,338,900 = 1,338,900 : x
2. Step 2: Convert to fraction form
   613,668/1,338,900 = 1,338,900/x
3. Step 3: Cross multiply
   613,668x = 1,338,900 × 1,338,900
4. Step 4: Simplify right side
   613,668x = 1,792,653,210,000
5. Step 5: Solve for x
   x = 1,792,653,210,000/613,668
6. Step 6: Final answer
   x = 2,921,210.18