Finding the Third Proportional to 479,892 and 1,039,272

Step by Step Solution

1. Step 1: Write the proportion equation
   479,892 : 1,039,272 = 1,039,272 : x
2. Step 2: Convert to fraction form
   479,892/1,039,272 = 1,039,272/x
3. Step 3: Cross multiply
   479,892x = 1,039,272 × 1,039,272
4. Step 4: Simplify right side
   479,892x = 1,080,086,289,984
5. Step 5: Solve for x
   x = 1,080,086,289,984/479,892
6. Step 6: Final answer
   x = 2,250,686.18