Finding the Third Proportional to 300,162 and 635,172

Step by Step Solution

1. Step 1: Write the proportion equation
   300,162 : 635,172 = 635,172 : x
2. Step 2: Convert to fraction form
   300,162/635,172 = 635,172/x
3. Step 3: Cross multiply
   300,162x = 635,172 × 635,172
4. Step 4: Simplify right side
   300,162x = 403,443,469,584
5. Step 5: Solve for x
   x = 403,443,469,584/300,162
6. Step 6: Final answer
   x = 1,344,085.76