Finding the Third Proportional to 3,860,704 and 8,319,800

Step by Step Solution

1. Step 1: Write the proportion equation
   3,860,704 : 8,319,800 = 8,319,800 : x
2. Step 2: Convert to fraction form
   3,860,704/8,319,800 = 8,319,800/x
3. Step 3: Cross multiply
   3,860,704x = 8,319,800 × 8,319,800
4. Step 4: Simplify right side
   3,860,704x = 69,219,072,040,000
5. Step 5: Solve for x
   x = 69,219,072,040,000/3,860,704
6. Step 6: Final answer
   x = 17,929,132.11