Finding the Third Proportional to 12,945.25 and 19,171.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,945.25 : 19,171.50 = 19,171.50 : x
2. Step 2: Convert to fraction form
   12,945.25/19,171.50 = 19,171.50/x
3. Step 3: Cross multiply
   12,945.25x = 19,171.50 × 19,171.50
4. Step 4: Simplify right side
   12,945.25x = 367,546,412.25
5. Step 5: Solve for x
   x = 367,546,412.25/12,945.25
6. Step 6: Final answer
   x = 28,392.38