Finding the Third Proportional to 3,605,013 and 7,721,766

Step by Step Solution

1. Step 1: Write the proportion equation
   3,605,013 : 7,721,766 = 7,721,766 : x
2. Step 2: Convert to fraction form
   3,605,013/7,721,766 = 7,721,766/x
3. Step 3: Cross multiply
   3,605,013x = 7,721,766 × 7,721,766
4. Step 4: Simplify right side
   3,605,013x = 59,625,670,158,756
5. Step 5: Solve for x
   x = 59,625,670,158,756/3,605,013
6. Step 6: Final answer
   x = 16,539,654.69