Finding the Third Proportional to 72,828 and 158,112

Step by Step Solution

1. Step 1: Write the proportion equation
   72,828 : 158,112 = 158,112 : x
2. Step 2: Convert to fraction form
   72,828/158,112 = 158,112/x
3. Step 3: Cross multiply
   72,828x = 158,112 × 158,112
4. Step 4: Simplify right side
   72,828x = 24,999,404,544
5. Step 5: Solve for x
   x = 24,999,404,544/72,828
6. Step 6: Final answer
   x = 343,266.39