Finding the Third Proportional to 199,606 and 443,499

Step by Step Solution

1. Step 1: Write the proportion equation
   199,606 : 443,499 = 443,499 : x
2. Step 2: Convert to fraction form
   199,606/443,499 = 443,499/x
3. Step 3: Cross multiply
   199,606x = 443,499 × 443,499
4. Step 4: Simplify right side
   199,606x = 196,691,363,001
5. Step 5: Solve for x
   x = 196,691,363,001/199,606
6. Step 6: Final answer
   x = 985,398.05