Finding the Third Proportional to 12,130.25 and 25,718.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,130.25 : 25,718.50 = 25,718.50 : x
2. Step 2: Convert to fraction form
   12,130.25/25,718.50 = 25,718.50/x
3. Step 3: Cross multiply
   12,130.25x = 25,718.50 × 25,718.50
4. Step 4: Simplify right side
   12,130.25x = 661,441,242.25
5. Step 5: Solve for x
   x = 661,441,242.25/12,130.25
6. Step 6: Final answer
   x = 54,528.24