Finding the Third Proportional to 82,715 and 100,859

Step by Step Solution

1. Step 1: Write the proportion equation
   82,715 : 100,859 = 100,859 : x
2. Step 2: Convert to fraction form
   82,715/100,859 = 100,859/x
3. Step 3: Cross multiply
   82,715x = 100,859 × 100,859
4. Step 4: Simplify right side
   82,715x = 10,172,537,881
5. Step 5: Solve for x
   x = 10,172,537,881/82,715
6. Step 6: Final answer
   x = 122,982.99