Finding the Third Proportional to 81,686 and 124,932

Step by Step Solution

1. Step 1: Write the proportion equation
   81,686 : 124,932 = 124,932 : x
2. Step 2: Convert to fraction form
   81,686/124,932 = 124,932/x
3. Step 3: Cross multiply
   81,686x = 124,932 × 124,932
4. Step 4: Simplify right side
   81,686x = 15,608,004,624
5. Step 5: Solve for x
   x = 15,608,004,624/81,686
6. Step 6: Final answer
   x = 191,073.19