Finding the Third Proportional to 17,498.25 and 19,989

Step by Step Solution

1. Step 1: Write the proportion equation
   17,498.25 : 19,989 = 19,989 : x
2. Step 2: Convert to fraction form
   17,498.25/19,989 = 19,989/x
3. Step 3: Cross multiply
   17,498.25x = 19,989 × 19,989
4. Step 4: Simplify right side
   17,498.25x = 399,560,121
5. Step 5: Solve for x
   x = 399,560,121/17,498.25
6. Step 6: Final answer
   x = 22,834.29