Finding the Third Proportional to 12,607.50 and 20,939.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,607.50 : 20,939.25 = 20,939.25 : x
2. Step 2: Convert to fraction form
   12,607.50/20,939.25 = 20,939.25/x
3. Step 3: Cross multiply
   12,607.50x = 20,939.25 × 20,939.25
4. Step 4: Simplify right side
   12,607.50x = 438,452,190.56
5. Step 5: Solve for x
   x = 438,452,190.56/12,607.50
6. Step 6: Final answer
   x = 34,777.09