Finding the Third Proportional to 216,735 and 333,543

Step by Step Solution

1. Step 1: Write the proportion equation
   216,735 : 333,543 = 333,543 : x
2. Step 2: Convert to fraction form
   216,735/333,543 = 333,543/x
3. Step 3: Cross multiply
   216,735x = 333,543 × 333,543
4. Step 4: Simplify right side
   216,735x = 111,250,932,849
5. Step 5: Solve for x
   x = 111,250,932,849/216,735
6. Step 6: Final answer
   x = 513,303.96