Finding the Third Proportional to 1,968,708 and 4,210,404

Step by Step Solution

1. Step 1: Write the proportion equation
   1,968,708 : 4,210,404 = 4,210,404 : x
2. Step 2: Convert to fraction form
   1,968,708/4,210,404 = 4,210,404/x
3. Step 3: Cross multiply
   1,968,708x = 4,210,404 × 4,210,404
4. Step 4: Simplify right side
   1,968,708x = 17,727,501,843,216
5. Step 5: Solve for x
   x = 17,727,501,843,216/1,968,708
6. Step 6: Final answer
   x = 9,004,637.48