Finding the Third Proportional to 55,087.50 and 80,039.25

Step by Step Solution

1. Step 1: Write the proportion equation
   55,087.50 : 80,039.25 = 80,039.25 : x
2. Step 2: Convert to fraction form
   55,087.50/80,039.25 = 80,039.25/x
3. Step 3: Cross multiply
   55,087.50x = 80,039.25 × 80,039.25
4. Step 4: Simplify right side
   55,087.50x = 6,406,281,540.56
5. Step 5: Solve for x
   x = 6,406,281,540.56/55,087.50
6. Step 6: Final answer
   x = 116,292.83