Finding the Third Proportional to 50,700 and 78,036

Step by Step Solution

1. Step 1: Write the proportion equation
   50,700 : 78,036 = 78,036 : x
2. Step 2: Convert to fraction form
   50,700/78,036 = 78,036/x
3. Step 3: Cross multiply
   50,700x = 78,036 × 78,036
4. Step 4: Simplify right side
   50,700x = 6,089,617,296
5. Step 5: Solve for x
   x = 6,089,617,296/50,700
6. Step 6: Final answer
   x = 120,110.79