Finding the Third Proportional to 91,709 and 200,913

Step by Step Solution

1. Step 1: Write the proportion equation
   91,709 : 200,913 = 200,913 : x
2. Step 2: Convert to fraction form
   91,709/200,913 = 200,913/x
3. Step 3: Cross multiply
   91,709x = 200,913 × 200,913
4. Step 4: Simplify right side
   91,709x = 40,366,033,569
5. Step 5: Solve for x
   x = 40,366,033,569/91,709
6. Step 6: Final answer
   x = 440,153.46