Finding the Third Proportional to 109,180 and 231,481

Step by Step Solution

1. Step 1: Write the proportion equation
   109,180 : 231,481 = 231,481 : x
2. Step 2: Convert to fraction form
   109,180/231,481 = 231,481/x
3. Step 3: Cross multiply
   109,180x = 231,481 × 231,481
4. Step 4: Simplify right side
   109,180x = 53,583,453,361
5. Step 5: Solve for x
   x = 53,583,453,361/109,180
6. Step 6: Final answer
   x = 490,780.85