Finding the Third Proportional to 388.88 and 891.56

Step by Step Solution

1. Step 1: Write the proportion equation
   388.88 : 891.56 = 891.56 : x
2. Step 2: Convert to fraction form
   388.88/891.56 = 891.56/x
3. Step 3: Cross multiply
   388.88x = 891.56 × 891.56
4. Step 4: Simplify right side
   388.88x = 794,883.69
5. Step 5: Solve for x
   x = 794,883.69/388.88
6. Step 6: Final answer
   x = 2,044.06