Finding the Third Proportional to 20,587.50 and 30,840.75

Step by Step Solution

1. Step 1: Write the proportion equation
   20,587.50 : 30,840.75 = 30,840.75 : x
2. Step 2: Convert to fraction form
   20,587.50/30,840.75 = 30,840.75/x
3. Step 3: Cross multiply
   20,587.50x = 30,840.75 × 30,840.75
4. Step 4: Simplify right side
   20,587.50x = 951,151,860.56
5. Step 5: Solve for x
   x = 951,151,860.56/20,587.50
6. Step 6: Final answer
   x = 46,200.45