Finding the Third Proportional to 1,003.50 and 1,181.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,003.50 : 1,181.25 = 1,181.25 : x
2. Step 2: Convert to fraction form
   1,003.50/1,181.25 = 1,181.25/x
3. Step 3: Cross multiply
   1,003.50x = 1,181.25 × 1,181.25
4. Step 4: Simplify right side
   1,003.50x = 1,395,351.56
5. Step 5: Solve for x
   x = 1,395,351.56/1,003.50
6. Step 6: Final answer
   x = 1,390.48