Finding the Third Proportional to 91,760 and 200,800

Step by Step Solution

1. Step 1: Write the proportion equation
   91,760 : 200,800 = 200,800 : x
2. Step 2: Convert to fraction form
   91,760/200,800 = 200,800/x
3. Step 3: Cross multiply
   91,760x = 200,800 × 200,800
4. Step 4: Simplify right side
   91,760x = 40,320,640,000
5. Step 5: Solve for x
   x = 40,320,640,000/91,760
6. Step 6: Final answer
   x = 439,414.12