Finding the Third Proportional to 78,436 and 161,042

Step by Step Solution

1. Step 1: Write the proportion equation
   78,436 : 161,042 = 161,042 : x
2. Step 2: Convert to fraction form
   78,436/161,042 = 161,042/x
3. Step 3: Cross multiply
   78,436x = 161,042 × 161,042
4. Step 4: Simplify right side
   78,436x = 25,934,525,764
5. Step 5: Solve for x
   x = 25,934,525,764/78,436
6. Step 6: Final answer
   x = 330,645.70