Finding the Third Proportional to 108,399 and 231,861

Step by Step Solution

1. Step 1: Write the proportion equation
   108,399 : 231,861 = 231,861 : x
2. Step 2: Convert to fraction form
   108,399/231,861 = 231,861/x
3. Step 3: Cross multiply
   108,399x = 231,861 × 231,861
4. Step 4: Simplify right side
   108,399x = 53,759,523,321
5. Step 5: Solve for x
   x = 53,759,523,321/108,399
6. Step 6: Final answer
   x = 495,941.14