Finding the Third Proportional to 891.84 and 2,103.89

Step by Step Solution

1. Step 1: Write the proportion equation
   891.84 : 2,103.89 = 2,103.89 : x
2. Step 2: Convert to fraction form
   891.84/2,103.89 = 2,103.89/x
3. Step 3: Cross multiply
   891.84x = 2,103.89 × 2,103.89
4. Step 4: Simplify right side
   891.84x = 4,426,355.76
5. Step 5: Solve for x
   x = 4,426,355.76/891.84
6. Step 6: Final answer
   x = 4,963.15