Finding the Third Proportional to 217,106 and 333,974

Step by Step Solution

1. Step 1: Write the proportion equation
   217,106 : 333,974 = 333,974 : x
2. Step 2: Convert to fraction form
   217,106/333,974 = 333,974/x
3. Step 3: Cross multiply
   217,106x = 333,974 × 333,974
4. Step 4: Simplify right side
   217,106x = 111,538,632,676
5. Step 5: Solve for x
   x = 111,538,632,676/217,106
6. Step 6: Final answer
   x = 513,751.96