Finding the Third Proportional to 16,139 and 35,289

Step by Step Solution

1. Step 1: Write the proportion equation
   16,139 : 35,289 = 35,289 : x
2. Step 2: Convert to fraction form
   16,139/35,289 = 35,289/x
3. Step 3: Cross multiply
   16,139x = 35,289 × 35,289
4. Step 4: Simplify right side
   16,139x = 1,245,313,521
5. Step 5: Solve for x
   x = 1,245,313,521/16,139
6. Step 6: Final answer
   x = 77,161.75