Finding the Third Proportional to 216,732 and 333,538.50

Step by Step Solution

1. Step 1: Write the proportion equation
   216,732 : 333,538.50 = 333,538.50 : x
2. Step 2: Convert to fraction form
   216,732/333,538.50 = 333,538.50/x
3. Step 3: Cross multiply
   216,732x = 333,538.50 × 333,538.50
4. Step 4: Simplify right side
   216,732x = 111,247,930,982.25
5. Step 5: Solve for x
   x = 111,247,930,982.25/216,732
6. Step 6: Final answer
   x = 513,297.21