Finding the Third Proportional to 50,743.50 and 78,876

Step by Step Solution

1. Step 1: Write the proportion equation
   50,743.50 : 78,876 = 78,876 : x
2. Step 2: Convert to fraction form
   50,743.50/78,876 = 78,876/x
3. Step 3: Cross multiply
   50,743.50x = 78,876 × 78,876
4. Step 4: Simplify right side
   50,743.50x = 6,221,423,376
5. Step 5: Solve for x
   x = 6,221,423,376/50,743.50
6. Step 6: Final answer
   x = 122,605.33