Finding the Third Proportional to 20,593.50 and 42,157

Step by Step Solution

1. Step 1: Write the proportion equation
   20,593.50 : 42,157 = 42,157 : x
2. Step 2: Convert to fraction form
   20,593.50/42,157 = 42,157/x
3. Step 3: Cross multiply
   20,593.50x = 42,157 × 42,157
4. Step 4: Simplify right side
   20,593.50x = 1,777,212,649
5. Step 5: Solve for x
   x = 1,777,212,649/20,593.50
6. Step 6: Final answer
   x = 86,299.69