Finding the Third Proportional to 91,707 and 200,909

Step by Step Solution

1. Step 1: Write the proportion equation
   91,707 : 200,909 = 200,909 : x
2. Step 2: Convert to fraction form
   91,707/200,909 = 200,909/x
3. Step 3: Cross multiply
   91,707x = 200,909 × 200,909
4. Step 4: Simplify right side
   91,707x = 40,364,426,281
5. Step 5: Solve for x
   x = 40,364,426,281/91,707
6. Step 6: Final answer
   x = 440,145.53