Finding the Third Proportional to 199,591.50 and 433,089

Step by Step Solution

1. Step 1: Write the proportion equation
   199,591.50 : 433,089 = 433,089 : x
2. Step 2: Convert to fraction form
   199,591.50/433,089 = 433,089/x
3. Step 3: Cross multiply
   199,591.50x = 433,089 × 433,089
4. Step 4: Simplify right side
   199,591.50x = 187,566,081,921
5. Step 5: Solve for x
   x = 187,566,081,921/199,591.50
6. Step 6: Final answer
   x = 939,749.85