Finding the Third Proportional to 12,955.25 and 20,005.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,955.25 : 20,005.50 = 20,005.50 : x
2. Step 2: Convert to fraction form
   12,955.25/20,005.50 = 20,005.50/x
3. Step 3: Cross multiply
   12,955.25x = 20,005.50 × 20,005.50
4. Step 4: Simplify right side
   12,955.25x = 400,220,030.25
5. Step 5: Solve for x
   x = 400,220,030.25/12,955.25
6. Step 6: Final answer
   x = 30,892.50