Finding the Third Proportional to 64,806 and 131,916

Step by Step Solution

1. Step 1: Write the proportion equation
   64,806 : 131,916 = 131,916 : x
2. Step 2: Convert to fraction form
   64,806/131,916 = 131,916/x
3. Step 3: Cross multiply
   64,806x = 131,916 × 131,916
4. Step 4: Simplify right side
   64,806x = 17,401,831,056
5. Step 5: Solve for x
   x = 17,401,831,056/64,806
6. Step 6: Final answer
   x = 268,521.91