Finding the Third Proportional to 50,712.96 and 78,834.52

Step by Step Solution

1. Step 1: Write the proportion equation
   50,712.96 : 78,834.52 = 78,834.52 : x
2. Step 2: Convert to fraction form
   50,712.96/78,834.52 = 78,834.52/x
3. Step 3: Cross multiply
   50,712.96x = 78,834.52 × 78,834.52
4. Step 4: Simplify right side
   50,712.96x = 6,214,880,853.83
5. Step 5: Solve for x
   x = 6,214,880,853.83/50,712.96
6. Step 6: Final answer
   x = 122,550.15