Finding the Third Proportional to 31,292 and 65,173

Step by Step Solution

1. Step 1: Write the proportion equation
   31,292 : 65,173 = 65,173 : x
2. Step 2: Convert to fraction form
   31,292/65,173 = 65,173/x
3. Step 3: Cross multiply
   31,292x = 65,173 × 65,173
4. Step 4: Simplify right side
   31,292x = 4,247,519,929
5. Step 5: Solve for x
   x = 4,247,519,929/31,292
6. Step 6: Final answer
   x = 135,738.21