Finding the Third Proportional to 17,430 and 25,809

Step by Step Solution

1. Step 1: Write the proportion equation
   17,430 : 25,809 = 25,809 : x
2. Step 2: Convert to fraction form
   17,430/25,809 = 25,809/x
3. Step 3: Cross multiply
   17,430x = 25,809 × 25,809
4. Step 4: Simplify right side
   17,430x = 666,104,481
5. Step 5: Solve for x
   x = 666,104,481/17,430
6. Step 6: Final answer
   x = 38,215.98