Finding the Third Proportional to 3,859,718 and 5,677,311

Step by Step Solution

1. Step 1: Write the proportion equation
   3,859,718 : 5,677,311 = 5,677,311 : x
2. Step 2: Convert to fraction form
   3,859,718/5,677,311 = 5,677,311/x
3. Step 3: Cross multiply
   3,859,718x = 5,677,311 × 5,677,311
4. Step 4: Simplify right side
   3,859,718x = 32,231,860,190,721
5. Step 5: Solve for x
   x = 32,231,860,190,721/3,859,718
6. Step 6: Final answer
   x = 8,350,832.93