Finding the Third Proportional to 109,183 and 231,490

Step by Step Solution

1. Step 1: Write the proportion equation
   109,183 : 231,490 = 231,490 : x
2. Step 2: Convert to fraction form
   109,183/231,490 = 231,490/x
3. Step 3: Cross multiply
   109,183x = 231,490 × 231,490
4. Step 4: Simplify right side
   109,183x = 53,587,620,100
5. Step 5: Solve for x
   x = 53,587,620,100/109,183
6. Step 6: Final answer
   x = 490,805.53