Finding the Third Proportional to 9,689.63 and 13,074.75

Step by Step Solution

1. Step 1: Write the proportion equation
   9,689.63 : 13,074.75 = 13,074.75 : x
2. Step 2: Convert to fraction form
   9,689.63/13,074.75 = 13,074.75/x
3. Step 3: Cross multiply
   9,689.63x = 13,074.75 × 13,074.75
4. Step 4: Simplify right side
   9,689.63x = 170,949,087.56
5. Step 5: Solve for x
   x = 170,949,087.56/9,689.63
6. Step 6: Final answer
   x = 17,642.49