Finding the Third Proportional to 111,218 and 231,650

Step by Step Solution

1. Step 1: Write the proportion equation
   111,218 : 231,650 = 231,650 : x
2. Step 2: Convert to fraction form
   111,218/231,650 = 231,650/x
3. Step 3: Cross multiply
   111,218x = 231,650 × 231,650
4. Step 4: Simplify right side
   111,218x = 53,661,722,500
5. Step 5: Solve for x
   x = 53,661,722,500/111,218
6. Step 6: Final answer
   x = 482,491.35