Finding the Third Proportional to 55,040.75 and 65,003.75

Step by Step Solution

1. Step 1: Write the proportion equation
   55,040.75 : 65,003.75 = 65,003.75 : x
2. Step 2: Convert to fraction form
   55,040.75/65,003.75 = 65,003.75/x
3. Step 3: Cross multiply
   55,040.75x = 65,003.75 × 65,003.75
4. Step 4: Simplify right side
   55,040.75x = 4,225,487,514.06
5. Step 5: Solve for x
   x = 4,225,487,514.06/55,040.75
6. Step 6: Final answer
   x = 76,770.17