Finding the Third Proportional to 154,802 and 316,162

Step by Step Solution

1. Step 1: Write the proportion equation
   154,802 : 316,162 = 316,162 : x
2. Step 2: Convert to fraction form
   154,802/316,162 = 316,162/x
3. Step 3: Cross multiply
   154,802x = 316,162 × 316,162
4. Step 4: Simplify right side
   154,802x = 99,958,410,244
5. Step 5: Solve for x
   x = 99,958,410,244/154,802
6. Step 6: Final answer
   x = 645,717.82