Finding the Third Proportional to 3,846,820 and 8,208,516

Step by Step Solution

1. Step 1: Write the proportion equation
   3,846,820 : 8,208,516 = 8,208,516 : x
2. Step 2: Convert to fraction form
   3,846,820/8,208,516 = 8,208,516/x
3. Step 3: Cross multiply
   3,846,820x = 8,208,516 × 8,208,516
4. Step 4: Simplify right side
   3,846,820x = 67,379,734,922,256
5. Step 5: Solve for x
   x = 67,379,734,922,256/3,846,820
6. Step 6: Final answer
   x = 17,515,697.36