Finding the Third Proportional to 12,620.25 and 18,606.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,620.25 : 18,606.38 = 18,606.38 : x
2. Step 2: Convert to fraction form
   12,620.25/18,606.38 = 18,606.38/x
3. Step 3: Cross multiply
   12,620.25x = 18,606.38 × 18,606.38
4. Step 4: Simplify right side
   12,620.25x = 346,197,190.64
5. Step 5: Solve for x
   x = 346,197,190.64/12,620.25
6. Step 6: Final answer
   x = 27,431.88