Finding the Third Proportional to 411,301.13 and 443,488.50

Step by Step Solution

1. Step 1: Write the proportion equation
   411,301.13 : 443,488.50 = 443,488.50 : x
2. Step 2: Convert to fraction form
   411,301.13/443,488.50 = 443,488.50/x
3. Step 3: Cross multiply
   411,301.13x = 443,488.50 × 443,488.50
4. Step 4: Simplify right side
   411,301.13x = 196,682,049,632.25
5. Step 5: Solve for x
   x = 196,682,049,632.25/411,301.13
6. Step 6: Final answer
   x = 478,194.78