Finding the Third Proportional to 72,256.50 and 111,148.88

Step by Step Solution

1. Step 1: Write the proportion equation
   72,256.50 : 111,148.88 = 111,148.88 : x
2. Step 2: Convert to fraction form
   72,256.50/111,148.88 = 111,148.88/x
3. Step 3: Cross multiply
   72,256.50x = 111,148.88 × 111,148.88
4. Step 4: Simplify right side
   72,256.50x = 12,354,072,413.77
5. Step 5: Solve for x
   x = 12,354,072,413.77/72,256.50
6. Step 6: Final answer
   x = 170,975.24