Finding the Third Proportional to 3,228,456 and 7,086,687

Step by Step Solution

1. Step 1: Write the proportion equation
   3,228,456 : 7,086,687 = 7,086,687 : x
2. Step 2: Convert to fraction form
   3,228,456/7,086,687 = 7,086,687/x
3. Step 3: Cross multiply
   3,228,456x = 7,086,687 × 7,086,687
4. Step 4: Simplify right side
   3,228,456x = 50,221,132,635,969
5. Step 5: Solve for x
   x = 50,221,132,635,969/3,228,456
6. Step 6: Final answer
   x = 15,555,774.23