Finding the Third Proportional to 80,674 and 112,839

Step by Step Solution

1. Step 1: Write the proportion equation
   80,674 : 112,839 = 112,839 : x
2. Step 2: Convert to fraction form
   80,674/112,839 = 112,839/x
3. Step 3: Cross multiply
   80,674x = 112,839 × 112,839
4. Step 4: Simplify right side
   80,674x = 12,732,639,921
5. Step 5: Solve for x
   x = 12,732,639,921/80,674
6. Step 6: Final answer
   x = 157,828.30