Finding the Third Proportional to 9,131.25 and 19,628.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,131.25 : 19,628.25 = 19,628.25 : x
2. Step 2: Convert to fraction form
   9,131.25/19,628.25 = 19,628.25/x
3. Step 3: Cross multiply
   9,131.25x = 19,628.25 × 19,628.25
4. Step 4: Simplify right side
   9,131.25x = 385,268,198.06
5. Step 5: Solve for x
   x = 385,268,198.06/9,131.25
6. Step 6: Final answer
   x = 42,192.27