Finding the Third Proportional to 2,135,469 and 4,664,886

Step by Step Solution

1. Step 1: Write the proportion equation
   2,135,469 : 4,664,886 = 4,664,886 : x
2. Step 2: Convert to fraction form
   2,135,469/4,664,886 = 4,664,886/x
3. Step 3: Cross multiply
   2,135,469x = 4,664,886 × 4,664,886
4. Step 4: Simplify right side
   2,135,469x = 21,761,161,392,996
5. Step 5: Solve for x
   x = 21,761,161,392,996/2,135,469
6. Step 6: Final answer
   x = 10,190,342.91