Finding the Third Proportional to 109,172.25 and 231,466.50

Step by Step Solution

1. Step 1: Write the proportion equation
   109,172.25 : 231,466.50 = 231,466.50 : x
2. Step 2: Convert to fraction form
   109,172.25/231,466.50 = 231,466.50/x
3. Step 3: Cross multiply
   109,172.25x = 231,466.50 × 231,466.50
4. Step 4: Simplify right side
   109,172.25x = 53,576,740,622.25
5. Step 5: Solve for x
   x = 53,576,740,622.25/109,172.25
6. Step 6: Final answer
   x = 490,754.20