Finding the Third Proportional to 199,330 and 424,500

Step by Step Solution

1. Step 1: Write the proportion equation
   199,330 : 424,500 = 424,500 : x
2. Step 2: Convert to fraction form
   199,330/424,500 = 424,500/x
3. Step 3: Cross multiply
   199,330x = 424,500 × 424,500
4. Step 4: Simplify right side
   199,330x = 180,200,250,000
5. Step 5: Solve for x
   x = 180,200,250,000/199,330
6. Step 6: Final answer
   x = 904,029.75