Finding the Third Proportional to 31,056 and 65,616

Step by Step Solution

1. Step 1: Write the proportion equation
   31,056 : 65,616 = 65,616 : x
2. Step 2: Convert to fraction form
   31,056/65,616 = 65,616/x
3. Step 3: Cross multiply
   31,056x = 65,616 × 65,616
4. Step 4: Simplify right side
   31,056x = 4,305,459,456
5. Step 5: Solve for x
   x = 4,305,459,456/31,056
6. Step 6: Final answer
   x = 138,635.35