Finding the Third Proportional to 82,719 and 100,863

Step by Step Solution

1. Step 1: Write the proportion equation
   82,719 : 100,863 = 100,863 : x
2. Step 2: Convert to fraction form
   82,719/100,863 = 100,863/x
3. Step 3: Cross multiply
   82,719x = 100,863 × 100,863
4. Step 4: Simplify right side
   82,719x = 10,173,344,769
5. Step 5: Solve for x
   x = 10,173,344,769/82,719
6. Step 6: Final answer
   x = 122,986.80