Finding the Third Proportional to 211,629 and 327,820.50

Step by Step Solution

1. Step 1: Write the proportion equation
   211,629 : 327,820.50 = 327,820.50 : x
2. Step 2: Convert to fraction form
   211,629/327,820.50 = 327,820.50/x
3. Step 3: Cross multiply
   211,629x = 327,820.50 × 327,820.50
4. Step 4: Simplify right side
   211,629x = 107,466,280,220.25
5. Step 5: Solve for x
   x = 107,466,280,220.25/211,629
6. Step 6: Final answer
   x = 507,805.08