Finding the Third Proportional to 56,178.56 and 84,108.38

Step by Step Solution

1. Step 1: Write the proportion equation
   56,178.56 : 84,108.38 = 84,108.38 : x
2. Step 2: Convert to fraction form
   56,178.56/84,108.38 = 84,108.38/x
3. Step 3: Cross multiply
   56,178.56x = 84,108.38 × 84,108.38
4. Step 4: Simplify right side
   56,178.56x = 7,074,218,745.14
5. Step 5: Solve for x
   x = 7,074,218,745.14/56,178.56
6. Step 6: Final answer
   x = 125,923.81