Finding the Third Proportional to 1,071,568 and 1,621,128

Step by Step Solution

1. Step 1: Write the proportion equation
   1,071,568 : 1,621,128 = 1,621,128 : x
2. Step 2: Convert to fraction form
   1,071,568/1,621,128 = 1,621,128/x
3. Step 3: Cross multiply
   1,071,568x = 1,621,128 × 1,621,128
4. Step 4: Simplify right side
   1,071,568x = 2,628,055,992,384
5. Step 5: Solve for x
   x = 2,628,055,992,384/1,071,568
6. Step 6: Final answer
   x = 2,452,533.10