Finding the Third Proportional to 4,403,980 and 6,806,388

Step by Step Solution

1. Step 1: Write the proportion equation
   4,403,980 : 6,806,388 = 6,806,388 : x
2. Step 2: Convert to fraction form
   4,403,980/6,806,388 = 6,806,388/x
3. Step 3: Cross multiply
   4,403,980x = 6,806,388 × 6,806,388
4. Step 4: Simplify right side
   4,403,980x = 46,326,917,606,544
5. Step 5: Solve for x
   x = 46,326,917,606,544/4,403,980
6. Step 6: Final answer
   x = 10,519,329.70