Finding the Third Proportional to 111,350 and 231,880

Step by Step Solution

1. Step 1: Write the proportion equation
   111,350 : 231,880 = 231,880 : x
2. Step 2: Convert to fraction form
   111,350/231,880 = 231,880/x
3. Step 3: Cross multiply
   111,350x = 231,880 × 231,880
4. Step 4: Simplify right side
   111,350x = 53,768,334,400
5. Step 5: Solve for x
   x = 53,768,334,400/111,350
6. Step 6: Final answer
   x = 482,876.82