Finding the Third Proportional to 109,372 and 231,745

Step by Step Solution

1. Step 1: Write the proportion equation
   109,372 : 231,745 = 231,745 : x
2. Step 2: Convert to fraction form
   109,372/231,745 = 231,745/x
3. Step 3: Cross multiply
   109,372x = 231,745 × 231,745
4. Step 4: Simplify right side
   109,372x = 53,705,745,025
5. Step 5: Solve for x
   x = 53,705,745,025/109,372
6. Step 6: Final answer
   x = 491,037.42