Finding the Third Proportional to 16,828 and 35,400

Step by Step Solution

1. Step 1: Write the proportion equation
   16,828 : 35,400 = 35,400 : x
2. Step 2: Convert to fraction form
   16,828/35,400 = 35,400/x
3. Step 3: Cross multiply
   16,828x = 35,400 × 35,400
4. Step 4: Simplify right side
   16,828x = 1,253,160,000
5. Step 5: Solve for x
   x = 1,253,160,000/16,828
6. Step 6: Final answer
   x = 74,468.74