Finding the Third Proportional to 17,990.86 and 25,158.09

Step by Step Solution

1. Step 1: Write the proportion equation
   17,990.86 : 25,158.09 = 25,158.09 : x
2. Step 2: Convert to fraction form
   17,990.86/25,158.09 = 25,158.09/x
3. Step 3: Cross multiply
   17,990.86x = 25,158.09 × 25,158.09
4. Step 4: Simplify right side
   17,990.86x = 632,929,681.13
5. Step 5: Solve for x
   x = 632,929,681.13/17,990.86
6. Step 6: Final answer
   x = 35,180.63