Finding the Third Proportional to 82,713 and 100,857

Step by Step Solution

1. Step 1: Write the proportion equation
   82,713 : 100,857 = 100,857 : x
2. Step 2: Convert to fraction form
   82,713/100,857 = 100,857/x
3. Step 3: Cross multiply
   82,713x = 100,857 × 100,857
4. Step 4: Simplify right side
   82,713x = 10,172,134,449
5. Step 5: Solve for x
   x = 10,172,134,449/82,713
6. Step 6: Final answer
   x = 122,981.08