Finding the Third Proportional to 11,172 and 17,970

Step by Step Solution

1. Step 1: Write the proportion equation
   11,172 : 17,970 = 17,970 : x
2. Step 2: Convert to fraction form
   11,172/17,970 = 17,970/x
3. Step 3: Cross multiply
   11,172x = 17,970 × 17,970
4. Step 4: Simplify right side
   11,172x = 322,920,900
5. Step 5: Solve for x
   x = 322,920,900/11,172
6. Step 6: Final answer
   x = 28,904.48