Finding the Third Proportional to 868.06 and 1,335.55

Step by Step Solution

1. Step 1: Write the proportion equation
   868.06 : 1,335.55 = 1,335.55 : x
2. Step 2: Convert to fraction form
   868.06/1,335.55 = 1,335.55/x
3. Step 3: Cross multiply
   868.06x = 1,335.55 × 1,335.55
4. Step 4: Simplify right side
   868.06x = 1,783,695.89
5. Step 5: Solve for x
   x = 1,783,695.89/868.06
6. Step 6: Final answer
   x = 2,054.81