Finding the Third Proportional to 2,917 and 3,815.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,917 : 3,815.50 = 3,815.50 : x
2. Step 2: Convert to fraction form
   2,917/3,815.50 = 3,815.50/x
3. Step 3: Cross multiply
   2,917x = 3,815.50 × 3,815.50
4. Step 4: Simplify right side
   2,917x = 14,558,040.25
5. Step 5: Solve for x
   x = 14,558,040.25/2,917
6. Step 6: Final answer
   x = 4,990.76