Finding the Third Proportional to 3,941,063 and 8,489,869

Step by Step Solution

1. Step 1: Write the proportion equation
   3,941,063 : 8,489,869 = 8,489,869 : x
2. Step 2: Convert to fraction form
   3,941,063/8,489,869 = 8,489,869/x
3. Step 3: Cross multiply
   3,941,063x = 8,489,869 × 8,489,869
4. Step 4: Simplify right side
   3,941,063x = 72,077,875,637,161
5. Step 5: Solve for x
   x = 72,077,875,637,161/3,941,063
6. Step 6: Final answer
   x = 18,288,942.76