Finding the Third Proportional to 51,992.51 and 78,552.60

Step by Step Solution

1. Step 1: Write the proportion equation
   51,992.51 : 78,552.60 = 78,552.60 : x
2. Step 2: Convert to fraction form
   51,992.51/78,552.60 = 78,552.60/x
3. Step 3: Cross multiply
   51,992.51x = 78,552.60 × 78,552.60
4. Step 4: Simplify right side
   51,992.51x = 6,170,510,598.54
5. Step 5: Solve for x
   x = 6,170,510,598.54/51,992.51
6. Step 6: Final answer
   x = 118,680.76