Finding the Third Proportional to 20,308.50 and 48,921.50

Step by Step Solution

1. Step 1: Write the proportion equation
   20,308.50 : 48,921.50 = 48,921.50 : x
2. Step 2: Convert to fraction form
   20,308.50/48,921.50 = 48,921.50/x
3. Step 3: Cross multiply
   20,308.50x = 48,921.50 × 48,921.50
4. Step 4: Simplify right side
   20,308.50x = 2,393,313,162.25
5. Step 5: Solve for x
   x = 2,393,313,162.25/20,308.50
6. Step 6: Final answer
   x = 117,847.85