Finding the Third Proportional to 50,727.75 and 78,854.50

Step by Step Solution

1. Step 1: Write the proportion equation
   50,727.75 : 78,854.50 = 78,854.50 : x
2. Step 2: Convert to fraction form
   50,727.75/78,854.50 = 78,854.50/x
3. Step 3: Cross multiply
   50,727.75x = 78,854.50 × 78,854.50
4. Step 4: Simplify right side
   50,727.75x = 6,218,032,170.25
5. Step 5: Solve for x
   x = 6,218,032,170.25/50,727.75
6. Step 6: Final answer
   x = 122,576.54