Finding the Third Proportional to 64,872 and 82,892

Step by Step Solution

1. Step 1: Write the proportion equation
   64,872 : 82,892 = 82,892 : x
2. Step 2: Convert to fraction form
   64,872/82,892 = 82,892/x
3. Step 3: Cross multiply
   64,872x = 82,892 × 82,892
4. Step 4: Simplify right side
   64,872x = 6,871,083,664
5. Step 5: Solve for x
   x = 6,871,083,664/64,872
6. Step 6: Final answer
   x = 105,917.56