Finding the Third Proportional to 199,606.50 and 443,506.50

Step by Step Solution

1. Step 1: Write the proportion equation
   199,606.50 : 443,506.50 = 443,506.50 : x
2. Step 2: Convert to fraction form
   199,606.50/443,506.50 = 443,506.50/x
3. Step 3: Cross multiply
   199,606.50x = 443,506.50 × 443,506.50
4. Step 4: Simplify right side
   199,606.50x = 196,698,015,542.25
5. Step 5: Solve for x
   x = 196,698,015,542.25/199,606.50
6. Step 6: Final answer
   x = 985,428.91