Finding the Third Proportional to 109,187 and 231,495

Step by Step Solution

1. Step 1: Write the proportion equation
   109,187 : 231,495 = 231,495 : x
2. Step 2: Convert to fraction form
   109,187/231,495 = 231,495/x
3. Step 3: Cross multiply
   109,187x = 231,495 × 231,495
4. Step 4: Simplify right side
   109,187x = 53,589,935,025
5. Step 5: Solve for x
   x = 53,589,935,025/109,187
6. Step 6: Final answer
   x = 490,808.75