Finding the Third Proportional to 19,723 and 42,902

Step by Step Solution

1. Step 1: Write the proportion equation
   19,723 : 42,902 = 42,902 : x
2. Step 2: Convert to fraction form
   19,723/42,902 = 42,902/x
3. Step 3: Cross multiply
   19,723x = 42,902 × 42,902
4. Step 4: Simplify right side
   19,723x = 1,840,581,604
5. Step 5: Solve for x
   x = 1,840,581,604/19,723
6. Step 6: Final answer
   x = 93,321.58