Finding the Third Proportional to 90,530 and 199,108

Step by Step Solution

1. Step 1: Write the proportion equation
   90,530 : 199,108 = 199,108 : x
2. Step 2: Convert to fraction form
   90,530/199,108 = 199,108/x
3. Step 3: Cross multiply
   90,530x = 199,108 × 199,108
4. Step 4: Simplify right side
   90,530x = 39,643,995,664
5. Step 5: Solve for x
   x = 39,643,995,664/90,530
6. Step 6: Final answer
   x = 437,910.04