Finding the Third Proportional to 162,469 and 356,323

Step by Step Solution

1. Step 1: Write the proportion equation
   162,469 : 356,323 = 356,323 : x
2. Step 2: Convert to fraction form
   162,469/356,323 = 356,323/x
3. Step 3: Cross multiply
   162,469x = 356,323 × 356,323
4. Step 4: Simplify right side
   162,469x = 126,966,080,329
5. Step 5: Solve for x
   x = 126,966,080,329/162,469
6. Step 6: Final answer
   x = 781,478.81