Finding the Third Proportional to 1,228.50 and 1,867.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,228.50 : 1,867.88 = 1,867.88 : x
2. Step 2: Convert to fraction form
   1,228.50/1,867.88 = 1,867.88/x
3. Step 3: Cross multiply
   1,228.50x = 1,867.88 × 1,867.88
4. Step 4: Simplify right side
   1,228.50x = 3,488,957.02
5. Step 5: Solve for x
   x = 3,488,957.02/1,228.50
6. Step 6: Final answer
   x = 2,840.01