Finding the Third Proportional to 16,681 and 35,486

Step by Step Solution

1. Step 1: Write the proportion equation
   16,681 : 35,486 = 35,486 : x
2. Step 2: Convert to fraction form
   16,681/35,486 = 35,486/x
3. Step 3: Cross multiply
   16,681x = 35,486 × 35,486
4. Step 4: Simplify right side
   16,681x = 1,259,256,196
5. Step 5: Solve for x
   x = 1,259,256,196/16,681
6. Step 6: Final answer
   x = 75,490.45