Finding the Third Proportional to 9,150.75 and 13,870.13

Step by Step Solution

1. Step 1: Write the proportion equation
   9,150.75 : 13,870.13 = 13,870.13 : x
2. Step 2: Convert to fraction form
   9,150.75/13,870.13 = 13,870.13/x
3. Step 3: Cross multiply
   9,150.75x = 13,870.13 × 13,870.13
4. Step 4: Simplify right side
   9,150.75x = 192,380,367.52
5. Step 5: Solve for x
   x = 192,380,367.52/9,150.75
6. Step 6: Final answer
   x = 21,023.45