Finding the Third Proportional to 20,778.75 and 45,040.50

Step by Step Solution

1. Step 1: Write the proportion equation
   20,778.75 : 45,040.50 = 45,040.50 : x
2. Step 2: Convert to fraction form
   20,778.75/45,040.50 = 45,040.50/x
3. Step 3: Cross multiply
   20,778.75x = 45,040.50 × 45,040.50
4. Step 4: Simplify right side
   20,778.75x = 2,028,646,640.25
5. Step 5: Solve for x
   x = 2,028,646,640.25/20,778.75
6. Step 6: Final answer
   x = 97,630.83