Finding the Third Proportional to 12,206.53 and 25,384.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,206.53 : 25,384.78 = 25,384.78 : x
2. Step 2: Convert to fraction form
   12,206.53/25,384.78 = 25,384.78/x
3. Step 3: Cross multiply
   12,206.53x = 25,384.78 × 25,384.78
4. Step 4: Simplify right side
   12,206.53x = 644,387,119.11
5. Step 5: Solve for x
   x = 644,387,119.11/12,206.53
6. Step 6: Final answer
   x = 52,790.36