Finding the Third Proportional to 56,164.50 and 122,879.25

Step by Step Solution

1. Step 1: Write the proportion equation
   56,164.50 : 122,879.25 = 122,879.25 : x
2. Step 2: Convert to fraction form
   56,164.50/122,879.25 = 122,879.25/x
3. Step 3: Cross multiply
   56,164.50x = 122,879.25 × 122,879.25
4. Step 4: Simplify right side
   56,164.50x = 15,099,310,080.56
5. Step 5: Solve for x
   x = 15,099,310,080.56/56,164.50
6. Step 6: Final answer
   x = 268,840.82