Finding the Third Proportional to 2,106 and 4,225.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,106 : 4,225.50 = 4,225.50 : x
2. Step 2: Convert to fraction form
   2,106/4,225.50 = 4,225.50/x
3. Step 3: Cross multiply
   2,106x = 4,225.50 × 4,225.50
4. Step 4: Simplify right side
   2,106x = 17,854,850.25
5. Step 5: Solve for x
   x = 17,854,850.25/2,106
6. Step 6: Final answer
   x = 8,478.09