Finding the Third Proportional to 16,389 and 35,370

Step by Step Solution

1. Step 1: Write the proportion equation
   16,389 : 35,370 = 35,370 : x
2. Step 2: Convert to fraction form
   16,389/35,370 = 35,370/x
3. Step 3: Cross multiply
   16,389x = 35,370 × 35,370
4. Step 4: Simplify right side
   16,389x = 1,251,036,900
5. Step 5: Solve for x
   x = 1,251,036,900/16,389
6. Step 6: Final answer
   x = 76,333.94