Finding the Third Proportional to 2,151,568 and 4,681,670

Step by Step Solution

1. Step 1: Write the proportion equation
   2,151,568 : 4,681,670 = 4,681,670 : x
2. Step 2: Convert to fraction form
   2,151,568/4,681,670 = 4,681,670/x
3. Step 3: Cross multiply
   2,151,568x = 4,681,670 × 4,681,670
4. Step 4: Simplify right side
   2,151,568x = 21,918,033,988,900
5. Step 5: Solve for x
   x = 21,918,033,988,900/2,151,568
6. Step 6: Final answer
   x = 10,187,005.01