Finding the Third Proportional to 72,744 and 112,329

Step by Step Solution

1. Step 1: Write the proportion equation
   72,744 : 112,329 = 112,329 : x
2. Step 2: Convert to fraction form
   72,744/112,329 = 112,329/x
3. Step 3: Cross multiply
   72,744x = 112,329 × 112,329
4. Step 4: Simplify right side
   72,744x = 12,617,804,241
5. Step 5: Solve for x
   x = 12,617,804,241/72,744
6. Step 6: Final answer
   x = 173,454.91