Finding the Third Proportional to 2,166 and 3,487.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,166 : 3,487.88 = 3,487.88 : x
2. Step 2: Convert to fraction form
   2,166/3,487.88 = 3,487.88/x
3. Step 3: Cross multiply
   2,166x = 3,487.88 × 3,487.88
4. Step 4: Simplify right side
   2,166x = 12,165,272.02
5. Step 5: Solve for x
   x = 12,165,272.02/2,166
6. Step 6: Final answer
   x = 5,616.47