Finding the Third Proportional to 3,870 and 7,308

Step by Step Solution

1. Step 1: Write the proportion equation
   3,870 : 7,308 = 7,308 : x
2. Step 2: Convert to fraction form
   3,870/7,308 = 7,308/x
3. Step 3: Cross multiply
   3,870x = 7,308 × 7,308
4. Step 4: Simplify right side
   3,870x = 53,406,864
5. Step 5: Solve for x
   x = 53,406,864/3,870
6. Step 6: Final answer
   x = 13,800.22