Finding the Third Proportional to 2,216 and 4,877.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,216 : 4,877.50 = 4,877.50 : x
2. Step 2: Convert to fraction form
   2,216/4,877.50 = 4,877.50/x
3. Step 3: Cross multiply
   2,216x = 4,877.50 × 4,877.50
4. Step 4: Simplify right side
   2,216x = 23,790,006.25
5. Step 5: Solve for x
   x = 23,790,006.25/2,216
6. Step 6: Final answer
   x = 10,735.56