Finding the Third Proportional to 388,568 and 841,648

Step by Step Solution

1. Step 1: Write the proportion equation
   388,568 : 841,648 = 841,648 : x
2. Step 2: Convert to fraction form
   388,568/841,648 = 841,648/x
3. Step 3: Cross multiply
   388,568x = 841,648 × 841,648
4. Step 4: Simplify right side
   388,568x = 708,371,355,904
5. Step 5: Solve for x
   x = 708,371,355,904/388,568
6. Step 6: Final answer
   x = 1,823,030.60