Finding the Third Proportional to 72,828 and 111,358

Step by Step Solution

1. Step 1: Write the proportion equation
   72,828 : 111,358 = 111,358 : x
2. Step 2: Convert to fraction form
   72,828/111,358 = 111,358/x
3. Step 3: Cross multiply
   72,828x = 111,358 × 111,358
4. Step 4: Simplify right side
   72,828x = 12,400,604,164
5. Step 5: Solve for x
   x = 12,400,604,164/72,828
6. Step 6: Final answer
   x = 170,272.48