Finding the Third Proportional to 199,588.50 and 443,470.50

Step by Step Solution

1. Step 1: Write the proportion equation
   199,588.50 : 443,470.50 = 443,470.50 : x
2. Step 2: Convert to fraction form
   199,588.50/443,470.50 = 443,470.50/x
3. Step 3: Cross multiply
   199,588.50x = 443,470.50 × 443,470.50
4. Step 4: Simplify right side
   199,588.50x = 196,666,084,370.25
5. Step 5: Solve for x
   x = 196,666,084,370.25/199,588.50
6. Step 6: Final answer
   x = 985,357.80