Finding the Third Proportional to 200,570 and 440,499

Step by Step Solution

1. Step 1: Write the proportion equation
   200,570 : 440,499 = 440,499 : x
2. Step 2: Convert to fraction form
   200,570/440,499 = 440,499/x
3. Step 3: Cross multiply
   200,570x = 440,499 × 440,499
4. Step 4: Simplify right side
   200,570x = 194,039,369,001
5. Step 5: Solve for x
   x = 194,039,369,001/200,570
6. Step 6: Final answer
   x = 967,439.64