Finding the Third Proportional to 17,520 and 35,520

Step by Step Solution

1. Step 1: Write the proportion equation
   17,520 : 35,520 = 35,520 : x
2. Step 2: Convert to fraction form
   17,520/35,520 = 35,520/x
3. Step 3: Cross multiply
   17,520x = 35,520 × 35,520
4. Step 4: Simplify right side
   17,520x = 1,261,670,400
5. Step 5: Solve for x
   x = 1,261,670,400/17,520
6. Step 6: Final answer
   x = 72,013.15