Finding the Third Proportional to 162,196 and 355,484

Step by Step Solution

1. Step 1: Write the proportion equation
   162,196 : 355,484 = 355,484 : x
2. Step 2: Convert to fraction form
   162,196/355,484 = 355,484/x
3. Step 3: Cross multiply
   162,196x = 355,484 × 355,484
4. Step 4: Simplify right side
   162,196x = 126,368,874,256
5. Step 5: Solve for x
   x = 126,368,874,256/162,196
6. Step 6: Final answer
   x = 779,112.15