Finding the Third Proportional to 50,553.50 and 78,494.75

Step by Step Solution

1. Step 1: Write the proportion equation
   50,553.50 : 78,494.75 = 78,494.75 : x
2. Step 2: Convert to fraction form
   50,553.50/78,494.75 = 78,494.75/x
3. Step 3: Cross multiply
   50,553.50x = 78,494.75 × 78,494.75
4. Step 4: Simplify right side
   50,553.50x = 6,161,425,777.56
5. Step 5: Solve for x
   x = 6,161,425,777.56/50,553.50
6. Step 6: Final answer
   x = 121,879.31