Finding the Third Proportional to 11,700 and 21,710.25

Step by Step Solution

1. Step 1: Write the proportion equation
   11,700 : 21,710.25 = 21,710.25 : x
2. Step 2: Convert to fraction form
   11,700/21,710.25 = 21,710.25/x
3. Step 3: Cross multiply
   11,700x = 21,710.25 × 21,710.25
4. Step 4: Simplify right side
   11,700x = 471,334,955.06
5. Step 5: Solve for x
   x = 471,334,955.06/11,700
6. Step 6: Final answer
   x = 40,285.04