Finding the Third Proportional to 677,970 and 1,338,930

Step by Step Solution

1. Step 1: Write the proportion equation
   677,970 : 1,338,930 = 1,338,930 : x
2. Step 2: Convert to fraction form
   677,970/1,338,930 = 1,338,930/x
3. Step 3: Cross multiply
   677,970x = 1,338,930 × 1,338,930
4. Step 4: Simplify right side
   677,970x = 1,792,733,544,900
5. Step 5: Solve for x
   x = 1,792,733,544,900/677,970
6. Step 6: Final answer
   x = 2,644,266.77