Finding the Third Proportional to 16,434.56 and 25,418.81

Step by Step Solution

1. Step 1: Write the proportion equation
   16,434.56 : 25,418.81 = 25,418.81 : x
2. Step 2: Convert to fraction form
   16,434.56/25,418.81 = 25,418.81/x
3. Step 3: Cross multiply
   16,434.56x = 25,418.81 × 25,418.81
4. Step 4: Simplify right side
   16,434.56x = 646,116,028.91
5. Step 5: Solve for x
   x = 646,116,028.91/16,434.56
6. Step 6: Final answer
   x = 39,314.46