Finding the Third Proportional to 20,057.50 and 40,602

Step by Step Solution

1. Step 1: Write the proportion equation
   20,057.50 : 40,602 = 40,602 : x
2. Step 2: Convert to fraction form
   20,057.50/40,602 = 40,602/x
3. Step 3: Cross multiply
   20,057.50x = 40,602 × 40,602
4. Step 4: Simplify right side
   20,057.50x = 1,648,522,404
5. Step 5: Solve for x
   x = 1,648,522,404/20,057.50
6. Step 6: Final answer
   x = 82,189.82