Finding the Third Proportional to 4,280,482 and 8,915,260

Step by Step Solution

1. Step 1: Write the proportion equation
   4,280,482 : 8,915,260 = 8,915,260 : x
2. Step 2: Convert to fraction form
   4,280,482/8,915,260 = 8,915,260/x
3. Step 3: Cross multiply
   4,280,482x = 8,915,260 × 8,915,260
4. Step 4: Simplify right side
   4,280,482x = 79,481,860,867,600
5. Step 5: Solve for x
   x = 79,481,860,867,600/4,280,482
6. Step 6: Final answer
   x = 18,568,437.12