Finding the Third Proportional to 217,101.75 and 327,019.50

Step by Step Solution

1. Step 1: Write the proportion equation
   217,101.75 : 327,019.50 = 327,019.50 : x
2. Step 2: Convert to fraction form
   217,101.75/327,019.50 = 327,019.50/x
3. Step 3: Cross multiply
   217,101.75x = 327,019.50 × 327,019.50
4. Step 4: Simplify right side
   217,101.75x = 106,941,753,380.25
5. Step 5: Solve for x
   x = 106,941,753,380.25/217,101.75
6. Step 6: Final answer
   x = 492,588.17