Finding the Third Proportional to 20,023 and 53,870

Step by Step Solution

1. Step 1: Write the proportion equation
   20,023 : 53,870 = 53,870 : x
2. Step 2: Convert to fraction form
   20,023/53,870 = 53,870/x
3. Step 3: Cross multiply
   20,023x = 53,870 × 53,870
4. Step 4: Simplify right side
   20,023x = 2,901,976,900
5. Step 5: Solve for x
   x = 2,901,976,900/20,023
6. Step 6: Final answer
   x = 144,932.17