Finding the Third Proportional to 3,955.50 and 7,146

Step by Step Solution

1. Step 1: Write the proportion equation
   3,955.50 : 7,146 = 7,146 : x
2. Step 2: Convert to fraction form
   3,955.50/7,146 = 7,146/x
3. Step 3: Cross multiply
   3,955.50x = 7,146 × 7,146
4. Step 4: Simplify right side
   3,955.50x = 51,065,316
5. Step 5: Solve for x
   x = 51,065,316/3,955.50
6. Step 6: Final answer
   x = 12,909.95