Finding the Third Proportional to 17,880 and 26,700

Step by Step Solution

1. Step 1: Write the proportion equation
   17,880 : 26,700 = 26,700 : x
2. Step 2: Convert to fraction form
   17,880/26,700 = 26,700/x
3. Step 3: Cross multiply
   17,880x = 26,700 × 26,700
4. Step 4: Simplify right side
   17,880x = 712,890,000
5. Step 5: Solve for x
   x = 712,890,000/17,880
6. Step 6: Final answer
   x = 39,870.81