Finding the Third Proportional to 216,570.66 and 333,313.31

Step by Step Solution

1. Step 1: Write the proportion equation
   216,570.66 : 333,313.31 = 333,313.31 : x
2. Step 2: Convert to fraction form
   216,570.66/333,313.31 = 333,313.31/x
3. Step 3: Cross multiply
   216,570.66x = 333,313.31 × 333,313.31
4. Step 4: Simplify right side
   216,570.66x = 111,097,764,289.72
5. Step 5: Solve for x
   x = 111,097,764,289.72/216,570.66
6. Step 6: Final answer
   x = 512,986.23