Finding the Third Proportional to 2,521,568,664.50 and 5,518,145,591.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,521,568,664.50 : 5,518,145,591.75 = 5,518,145,591.75 : x
2. Step 2: Convert to fraction form
   2,521,568,664.50/5,518,145,591.75 = 5,518,145,591.75/x
3. Step 3: Cross multiply
   2,521,568,664.50x = 5,518,145,591.75 × 5,518,145,591.75
4. Step 4: Simplify right side
   2,521,568,664.50x = 30,449,930,771,749,957,632
5. Step 5: Solve for x
   x = 30,449,930,771,749,957,632/2,521,568,664.50
6. Step 6: Final answer
   x = 12,075,788,853.36