Finding the Third Proportional to 998 and 2,185.50

Step by Step Solution

1. Step 1: Write the proportion equation
   998 : 2,185.50 = 2,185.50 : x
2. Step 2: Convert to fraction form
   998/2,185.50 = 2,185.50/x
3. Step 3: Cross multiply
   998x = 2,185.50 × 2,185.50
4. Step 4: Simplify right side
   998x = 4,776,410.25
5. Step 5: Solve for x
   x = 4,776,410.25/998
6. Step 6: Final answer
   x = 4,785.98