Finding the Third Proportional to 2,159,751 and 4,665,864

Step by Step Solution

1. Step 1: Write the proportion equation
   2,159,751 : 4,665,864 = 4,665,864 : x
2. Step 2: Convert to fraction form
   2,159,751/4,665,864 = 4,665,864/x
3. Step 3: Cross multiply
   2,159,751x = 4,665,864 × 4,665,864
4. Step 4: Simplify right side
   2,159,751x = 21,770,286,866,496
5. Step 5: Solve for x
   x = 21,770,286,866,496/2,159,751
6. Step 6: Final answer
   x = 10,079,998.51