Finding the Third Proportional to 199,532 and 443,405

Step by Step Solution

1. Step 1: Write the proportion equation
   199,532 : 443,405 = 443,405 : x
2. Step 2: Convert to fraction form
   199,532/443,405 = 443,405/x
3. Step 3: Cross multiply
   199,532x = 443,405 × 443,405
4. Step 4: Simplify right side
   199,532x = 196,607,994,025
5. Step 5: Solve for x
   x = 196,607,994,025/199,532
6. Step 6: Final answer
   x = 985,345.68