Finding the Third Proportional to 164,740 and 335,308

Step by Step Solution

1. Step 1: Write the proportion equation
   164,740 : 335,308 = 335,308 : x
2. Step 2: Convert to fraction form
   164,740/335,308 = 335,308/x
3. Step 3: Cross multiply
   164,740x = 335,308 × 335,308
4. Step 4: Simplify right side
   164,740x = 112,431,454,864
5. Step 5: Solve for x
   x = 112,431,454,864/164,740
6. Step 6: Final answer
   x = 682,478.18