Finding the Third Proportional to 5,646,105 and 8,521,767

Step by Step Solution

1. Step 1: Write the proportion equation
   5,646,105 : 8,521,767 = 8,521,767 : x
2. Step 2: Convert to fraction form
   5,646,105/8,521,767 = 8,521,767/x
3. Step 3: Cross multiply
   5,646,105x = 8,521,767 × 8,521,767
4. Step 4: Simplify right side
   5,646,105x = 72,620,512,802,289
5. Step 5: Solve for x
   x = 72,620,512,802,289/5,646,105
6. Step 6: Final answer
   x = 12,862,054.96