Finding the Third Proportional to 33,678.56 and 56,128.50

Step by Step Solution

1. Step 1: Write the proportion equation
   33,678.56 : 56,128.50 = 56,128.50 : x
2. Step 2: Convert to fraction form
   33,678.56/56,128.50 = 56,128.50/x
3. Step 3: Cross multiply
   33,678.56x = 56,128.50 × 56,128.50
4. Step 4: Simplify right side
   33,678.56x = 3,150,408,512.25
5. Step 5: Solve for x
   x = 3,150,408,512.25/33,678.56
6. Step 6: Final answer
   x = 93,543.44