Finding the Third Proportional to 112,578 and 173,736

Step by Step Solution

1. Step 1: Write the proportion equation
   112,578 : 173,736 = 173,736 : x
2. Step 2: Convert to fraction form
   112,578/173,736 = 173,736/x
3. Step 3: Cross multiply
   112,578x = 173,736 × 173,736
4. Step 4: Simplify right side
   112,578x = 30,184,197,696
5. Step 5: Solve for x
   x = 30,184,197,696/112,578
6. Step 6: Final answer
   x = 268,118.08