Finding the Third Proportional to 20,128.50 and 30,625.50

Step by Step Solution

1. Step 1: Write the proportion equation
   20,128.50 : 30,625.50 = 30,625.50 : x
2. Step 2: Convert to fraction form
   20,128.50/30,625.50 = 30,625.50/x
3. Step 3: Cross multiply
   20,128.50x = 30,625.50 × 30,625.50
4. Step 4: Simplify right side
   20,128.50x = 937,921,250.25
5. Step 5: Solve for x
   x = 937,921,250.25/20,128.50
6. Step 6: Final answer
   x = 46,596.68