Finding the Third Proportional to 991.50 and 1,824

Step by Step Solution

1. Step 1: Write the proportion equation
   991.50 : 1,824 = 1,824 : x
2. Step 2: Convert to fraction form
   991.50/1,824 = 1,824/x
3. Step 3: Cross multiply
   991.50x = 1,824 × 1,824
4. Step 4: Simplify right side
   991.50x = 3,326,976
5. Step 5: Solve for x
   x = 3,326,976/991.50
6. Step 6: Final answer
   x = 3,355.50