Finding the Third Proportional to 3,921,150 and 8,493,660

Step by Step Solution

1. Step 1: Write the proportion equation
   3,921,150 : 8,493,660 = 8,493,660 : x
2. Step 2: Convert to fraction form
   3,921,150/8,493,660 = 8,493,660/x
3. Step 3: Cross multiply
   3,921,150x = 8,493,660 × 8,493,660
4. Step 4: Simplify right side
   3,921,150x = 72,142,260,195,600
5. Step 5: Solve for x
   x = 72,142,260,195,600/3,921,150
6. Step 6: Final answer
   x = 18,398,240.36