Finding the Third Proportional to 41,890 and 86,696

Step by Step Solution

1. Step 1: Write the proportion equation
   41,890 : 86,696 = 86,696 : x
2. Step 2: Convert to fraction form
   41,890/86,696 = 86,696/x
3. Step 3: Cross multiply
   41,890x = 86,696 × 86,696
4. Step 4: Simplify right side
   41,890x = 7,516,196,416
5. Step 5: Solve for x
   x = 7,516,196,416/41,890
6. Step 6: Final answer
   x = 179,426.99