Finding the Third Proportional to 72,631 and 100,017

Step by Step Solution

1. Step 1: Write the proportion equation
   72,631 : 100,017 = 100,017 : x
2. Step 2: Convert to fraction form
   72,631/100,017 = 100,017/x
3. Step 3: Cross multiply
   72,631x = 100,017 × 100,017
4. Step 4: Simplify right side
   72,631x = 10,003,400,289
5. Step 5: Solve for x
   x = 10,003,400,289/72,631
6. Step 6: Final answer
   x = 137,729.07