Finding the Third Proportional to 72,636 and 112,238

Step by Step Solution

1. Step 1: Write the proportion equation
   72,636 : 112,238 = 112,238 : x
2. Step 2: Convert to fraction form
   72,636/112,238 = 112,238/x
3. Step 3: Cross multiply
   72,636x = 112,238 × 112,238
4. Step 4: Simplify right side
   72,636x = 12,597,368,644
5. Step 5: Solve for x
   x = 12,597,368,644/72,636
6. Step 6: Final answer
   x = 173,431.48