Finding the Third Proportional to 877.79 and 1,885.86

Step by Step Solution

1. Step 1: Write the proportion equation
   877.79 : 1,885.86 = 1,885.86 : x
2. Step 2: Convert to fraction form
   877.79/1,885.86 = 1,885.86/x
3. Step 3: Cross multiply
   877.79x = 1,885.86 × 1,885.86
4. Step 4: Simplify right side
   877.79x = 3,556,469.27
5. Step 5: Solve for x
   x = 3,556,469.27/877.79
6. Step 6: Final answer
   x = 4,051.62