Finding the Third Proportional to 16,813.13 and 25,345.69

Step by Step Solution

1. Step 1: Write the proportion equation
   16,813.13 : 25,345.69 = 25,345.69 : x
2. Step 2: Convert to fraction form
   16,813.13/25,345.69 = 25,345.69/x
3. Step 3: Cross multiply
   16,813.13x = 25,345.69 × 25,345.69
4. Step 4: Simplify right side
   16,813.13x = 642,403,874.85
5. Step 5: Solve for x
   x = 642,403,874.85/16,813.13
6. Step 6: Final answer
   x = 38,208.48