Finding the Third Proportional to 589,384 and 1,286,728

Step by Step Solution

1. Step 1: Write the proportion equation
   589,384 : 1,286,728 = 1,286,728 : x
2. Step 2: Convert to fraction form
   589,384/1,286,728 = 1,286,728/x
3. Step 3: Cross multiply
   589,384x = 1,286,728 × 1,286,728
4. Step 4: Simplify right side
   589,384x = 1,655,668,945,984
5. Step 5: Solve for x
   x = 1,655,668,945,984/589,384
6. Step 6: Final answer
   x = 2,809,151.50