Finding the Third Proportional to 20,375 and 42,613

Step by Step Solution

1. Step 1: Write the proportion equation
   20,375 : 42,613 = 42,613 : x
2. Step 2: Convert to fraction form
   20,375/42,613 = 42,613/x
3. Step 3: Cross multiply
   20,375x = 42,613 × 42,613
4. Step 4: Simplify right side
   20,375x = 1,815,867,769
5. Step 5: Solve for x
   x = 1,815,867,769/20,375
6. Step 6: Final answer
   x = 89,122.34