Finding the Third Proportional to 211,320 and 327,719.25

Step by Step Solution

1. Step 1: Write the proportion equation
   211,320 : 327,719.25 = 327,719.25 : x
2. Step 2: Convert to fraction form
   211,320/327,719.25 = 327,719.25/x
3. Step 3: Cross multiply
   211,320x = 327,719.25 × 327,719.25
4. Step 4: Simplify right side
   211,320x = 107,399,906,820.56
5. Step 5: Solve for x
   x = 107,399,906,820.56/211,320
6. Step 6: Final answer
   x = 508,233.52