Finding the Third Proportional to 20,789 and 42,802

Step by Step Solution

1. Step 1: Write the proportion equation
   20,789 : 42,802 = 42,802 : x
2. Step 2: Convert to fraction form
   20,789/42,802 = 42,802/x
3. Step 3: Cross multiply
   20,789x = 42,802 × 42,802
4. Step 4: Simplify right side
   20,789x = 1,832,011,204
5. Step 5: Solve for x
   x = 1,832,011,204/20,789
6. Step 6: Final answer
   x = 88,124.07