Finding the Third Proportional to 16,637.91 and 18,004.78

Step by Step Solution

1. Step 1: Write the proportion equation
   16,637.91 : 18,004.78 = 18,004.78 : x
2. Step 2: Convert to fraction form
   16,637.91/18,004.78 = 18,004.78/x
3. Step 3: Cross multiply
   16,637.91x = 18,004.78 × 18,004.78
4. Step 4: Simplify right side
   16,637.91x = 324,172,147.86
5. Step 5: Solve for x
   x = 324,172,147.86/16,637.91
6. Step 6: Final answer
   x = 19,483.95