Finding the Third Proportional to 2,151 and 4,715.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,151 : 4,715.50 = 4,715.50 : x
2. Step 2: Convert to fraction form
   2,151/4,715.50 = 4,715.50/x
3. Step 3: Cross multiply
   2,151x = 4,715.50 × 4,715.50
4. Step 4: Simplify right side
   2,151x = 22,235,940.25
5. Step 5: Solve for x
   x = 22,235,940.25/2,151
6. Step 6: Final answer
   x = 10,337.49