Finding the Third Proportional to 216,804 and 333,654

Step by Step Solution

1. Step 1: Write the proportion equation
   216,804 : 333,654 = 333,654 : x
2. Step 2: Convert to fraction form
   216,804/333,654 = 333,654/x
3. Step 3: Cross multiply
   216,804x = 333,654 × 333,654
4. Step 4: Simplify right side
   216,804x = 111,324,991,716
5. Step 5: Solve for x
   x = 111,324,991,716/216,804
6. Step 6: Final answer
   x = 513,482.19