Finding the Third Proportional to 442,206 and 1,039,419

Step by Step Solution

1. Step 1: Write the proportion equation
   442,206 : 1,039,419 = 1,039,419 : x
2. Step 2: Convert to fraction form
   442,206/1,039,419 = 1,039,419/x
3. Step 3: Cross multiply
   442,206x = 1,039,419 × 1,039,419
4. Step 4: Simplify right side
   442,206x = 1,080,391,857,561
5. Step 5: Solve for x
   x = 1,080,391,857,561/442,206
6. Step 6: Final answer
   x = 2,443,186.79