Finding the Third Proportional to 3,581,511,880.50 and 7,707,219,345

Step by Step Solution

1. Step 1: Write the proportion equation
   3,581,511,880.50 : 7,707,219,345 = 7,707,219,345 : x
2. Step 2: Convert to fraction form
   3,581,511,880.50/7,707,219,345 = 7,707,219,345/x
3. Step 3: Cross multiply
   3,581,511,880.50x = 7,707,219,345 × 7,707,219,345
4. Step 4: Simplify right side
   3,581,511,880.50x = 59,401,230,031,942,230,016
5. Step 5: Solve for x
   x = 59,401,230,031,942,230,016/3,581,511,880.50
6. Step 6: Final answer
   x = 16,585,518,075.58