Finding the Third Proportional to 699 and 1,118.25

Step by Step Solution

1. Step 1: Write the proportion equation
   699 : 1,118.25 = 1,118.25 : x
2. Step 2: Convert to fraction form
   699/1,118.25 = 1,118.25/x
3. Step 3: Cross multiply
   699x = 1,118.25 × 1,118.25
4. Step 4: Simplify right side
   699x = 1,250,483.06
5. Step 5: Solve for x
   x = 1,250,483.06/699
6. Step 6: Final answer
   x = 1,788.96