Finding the Third Proportional to 881.72 and 1,880.72

Step by Step Solution

1. Step 1: Write the proportion equation
   881.72 : 1,880.72 = 1,880.72 : x
2. Step 2: Convert to fraction form
   881.72/1,880.72 = 1,880.72/x
3. Step 3: Cross multiply
   881.72x = 1,880.72 × 1,880.72
4. Step 4: Simplify right side
   881.72x = 3,537,103.02
5. Step 5: Solve for x
   x = 3,537,103.02/881.72
6. Step 6: Final answer
   x = 4,011.60