Finding the Third Proportional to 20,538.56 and 41,816.25

Step by Step Solution

1. Step 1: Write the proportion equation
   20,538.56 : 41,816.25 = 41,816.25 : x
2. Step 2: Convert to fraction form
   20,538.56/41,816.25 = 41,816.25/x
3. Step 3: Cross multiply
   20,538.56x = 41,816.25 × 41,816.25
4. Step 4: Simplify right side
   20,538.56x = 1,748,598,764.06
5. Step 5: Solve for x
   x = 1,748,598,764.06/20,538.56
6. Step 6: Final answer
   x = 85,137.35