Finding the Third Proportional to 50,854.50 and 78,743.25

Step by Step Solution

1. Step 1: Write the proportion equation
   50,854.50 : 78,743.25 = 78,743.25 : x
2. Step 2: Convert to fraction form
   50,854.50/78,743.25 = 78,743.25/x
3. Step 3: Cross multiply
   50,854.50x = 78,743.25 × 78,743.25
4. Step 4: Simplify right side
   50,854.50x = 6,200,499,420.56
5. Step 5: Solve for x
   x = 6,200,499,420.56/50,854.50
6. Step 6: Final answer
   x = 121,926.27