Finding the Third Proportional to 91,556 and 200,608

Step by Step Solution

1. Step 1: Write the proportion equation
   91,556 : 200,608 = 200,608 : x
2. Step 2: Convert to fraction form
   91,556/200,608 = 200,608/x
3. Step 3: Cross multiply
   91,556x = 200,608 × 200,608
4. Step 4: Simplify right side
   91,556x = 40,243,569,664
5. Step 5: Solve for x
   x = 40,243,569,664/91,556
6. Step 6: Final answer
   x = 439,551.42