Finding the Third Proportional to 7,971.89 and 17,400.80

Step by Step Solution

1. Step 1: Write the proportion equation
   7,971.89 : 17,400.80 = 17,400.80 : x
2. Step 2: Convert to fraction form
   7,971.89/17,400.80 = 17,400.80/x
3. Step 3: Cross multiply
   7,971.89x = 17,400.80 × 17,400.80
4. Step 4: Simplify right side
   7,971.89x = 302,787,731.89
5. Step 5: Solve for x
   x = 302,787,731.89/7,971.89
6. Step 6: Final answer
   x = 37,981.92