Finding the Third Proportional to 72,328.50 and 111,982.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,328.50 : 111,982.50 = 111,982.50 : x
2. Step 2: Convert to fraction form
   72,328.50/111,982.50 = 111,982.50/x
3. Step 3: Cross multiply
   72,328.50x = 111,982.50 × 111,982.50
4. Step 4: Simplify right side
   72,328.50x = 12,540,080,306.25
5. Step 5: Solve for x
   x = 12,540,080,306.25/72,328.50
6. Step 6: Final answer
   x = 173,376.75