Finding the Third Proportional to 162,258 and 355,054

Step by Step Solution

1. Step 1: Write the proportion equation
   162,258 : 355,054 = 355,054 : x
2. Step 2: Convert to fraction form
   162,258/355,054 = 355,054/x
3. Step 3: Cross multiply
   162,258x = 355,054 × 355,054
4. Step 4: Simplify right side
   162,258x = 126,063,342,916
5. Step 5: Solve for x
   x = 126,063,342,916/162,258
6. Step 6: Final answer
   x = 776,931.45