Finding the Third Proportional to 9,150.75 and 19,712.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,150.75 : 19,712.25 = 19,712.25 : x
2. Step 2: Convert to fraction form
   9,150.75/19,712.25 = 19,712.25/x
3. Step 3: Cross multiply
   9,150.75x = 19,712.25 × 19,712.25
4. Step 4: Simplify right side
   9,150.75x = 388,572,800.06
5. Step 5: Solve for x
   x = 388,572,800.06/9,150.75
6. Step 6: Final answer
   x = 42,463.49