Finding the Third Proportional to 85,851 and 131,328

Step by Step Solution

1. Step 1: Write the proportion equation
   85,851 : 131,328 = 131,328 : x
2. Step 2: Convert to fraction form
   85,851/131,328 = 131,328/x
3. Step 3: Cross multiply
   85,851x = 131,328 × 131,328
4. Step 4: Simplify right side
   85,851x = 17,247,043,584
5. Step 5: Solve for x
   x = 17,247,043,584/85,851
6. Step 6: Final answer
   x = 200,895.08