Finding the Third Proportional to 728,288 and 1,485,492

Step by Step Solution

1. Step 1: Write the proportion equation
   728,288 : 1,485,492 = 1,485,492 : x
2. Step 2: Convert to fraction form
   728,288/1,485,492 = 1,485,492/x
3. Step 3: Cross multiply
   728,288x = 1,485,492 × 1,485,492
4. Step 4: Simplify right side
   728,288x = 2,206,686,482,064
5. Step 5: Solve for x
   x = 2,206,686,482,064/728,288
6. Step 6: Final answer
   x = 3,029,964.08