Finding the Third Proportional to 12,143.25 and 26,149.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,143.25 : 26,149.50 = 26,149.50 : x
2. Step 2: Convert to fraction form
   12,143.25/26,149.50 = 26,149.50/x
3. Step 3: Cross multiply
   12,143.25x = 26,149.50 × 26,149.50
4. Step 4: Simplify right side
   12,143.25x = 683,796,350.25
5. Step 5: Solve for x
   x = 683,796,350.25/12,143.25
6. Step 6: Final answer
   x = 56,310.82