Finding the Third Proportional to 35,920.78 and 78,059.44

Step by Step Solution

1. Step 1: Write the proportion equation
   35,920.78 : 78,059.44 = 78,059.44 : x
2. Step 2: Convert to fraction form
   35,920.78/78,059.44 = 78,059.44/x
3. Step 3: Cross multiply
   35,920.78x = 78,059.44 × 78,059.44
4. Step 4: Simplify right side
   35,920.78x = 6,093,275,782.82
5. Step 5: Solve for x
   x = 6,093,275,782.82/35,920.78
6. Step 6: Final answer
   x = 169,630.94