Finding the Third Proportional to 55,365.75 and 78,019.13

Step by Step Solution

1. Step 1: Write the proportion equation
   55,365.75 : 78,019.13 = 78,019.13 : x
2. Step 2: Convert to fraction form
   55,365.75/78,019.13 = 78,019.13/x
3. Step 3: Cross multiply
   55,365.75x = 78,019.13 × 78,019.13
4. Step 4: Simplify right side
   55,365.75x = 6,086,983,865.77
5. Step 5: Solve for x
   x = 6,086,983,865.77/55,365.75
6. Step 6: Final answer
   x = 109,941.32