Finding the Third Proportional to 1,818 and 2,758.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,818 : 2,758.50 = 2,758.50 : x
2. Step 2: Convert to fraction form
   1,818/2,758.50 = 2,758.50/x
3. Step 3: Cross multiply
   1,818x = 2,758.50 × 2,758.50
4. Step 4: Simplify right side
   1,818x = 7,609,322.25
5. Step 5: Solve for x
   x = 7,609,322.25/1,818
6. Step 6: Final answer
   x = 4,185.55