Finding the Third Proportional to 50,770.55 and 78,931.34

Step by Step Solution

1. Step 1: Write the proportion equation
   50,770.55 : 78,931.34 = 78,931.34 : x
2. Step 2: Convert to fraction form
   50,770.55/78,931.34 = 78,931.34/x
3. Step 3: Cross multiply
   50,770.55x = 78,931.34 × 78,931.34
4. Step 4: Simplify right side
   50,770.55x = 6,230,155,792.88
5. Step 5: Solve for x
   x = 6,230,155,792.88/50,770.55
6. Step 6: Final answer
   x = 122,712.01