Finding the Third Proportional to 3,274 and 7,155.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,274 : 7,155.50 = 7,155.50 : x
2. Step 2: Convert to fraction form
   3,274/7,155.50 = 7,155.50/x
3. Step 3: Cross multiply
   3,274x = 7,155.50 × 7,155.50
4. Step 4: Simplify right side
   3,274x = 51,201,180.25
5. Step 5: Solve for x
   x = 51,201,180.25/3,274
6. Step 6: Final answer
   x = 15,638.72