Finding the Third Proportional to 1,578,128 and 2,233,020

Step by Step Solution

1. Step 1: Write the proportion equation
   1,578,128 : 2,233,020 = 2,233,020 : x
2. Step 2: Convert to fraction form
   1,578,128/2,233,020 = 2,233,020/x
3. Step 3: Cross multiply
   1,578,128x = 2,233,020 × 2,233,020
4. Step 4: Simplify right side
   1,578,128x = 4,986,378,320,400
5. Step 5: Solve for x
   x = 4,986,378,320,400/1,578,128
6. Step 6: Final answer
   x = 3,159,679.27