Finding the Third Proportional to 20,341 and 42,869

Step by Step Solution

1. Step 1: Write the proportion equation
   20,341 : 42,869 = 42,869 : x
2. Step 2: Convert to fraction form
   20,341/42,869 = 42,869/x
3. Step 3: Cross multiply
   20,341x = 42,869 × 42,869
4. Step 4: Simplify right side
   20,341x = 1,837,751,161
5. Step 5: Solve for x
   x = 1,837,751,161/20,341
6. Step 6: Final answer
   x = 90,347.14