Finding the Third Proportional to 30,639 and 35,499

Step by Step Solution

1. Step 1: Write the proportion equation
   30,639 : 35,499 = 35,499 : x
2. Step 2: Convert to fraction form
   30,639/35,499 = 35,499/x
3. Step 3: Cross multiply
   30,639x = 35,499 × 35,499
4. Step 4: Simplify right side
   30,639x = 1,260,179,001
5. Step 5: Solve for x
   x = 1,260,179,001/30,639
6. Step 6: Final answer
   x = 41,129.90