Finding the Third Proportional to 199,543 and 443,372

Step by Step Solution

1. Step 1: Write the proportion equation
   199,543 : 443,372 = 443,372 : x
2. Step 2: Convert to fraction form
   199,543/443,372 = 443,372/x
3. Step 3: Cross multiply
   199,543x = 443,372 × 443,372
4. Step 4: Simplify right side
   199,543x = 196,578,730,384
5. Step 5: Solve for x
   x = 196,578,730,384/199,543
6. Step 6: Final answer
   x = 985,144.71