Finding the Third Proportional to 6,666 and 10,258

Step by Step Solution

1. Step 1: Write the proportion equation
   6,666 : 10,258 = 10,258 : x
2. Step 2: Convert to fraction form
   6,666/10,258 = 10,258/x
3. Step 3: Cross multiply
   6,666x = 10,258 × 10,258
4. Step 4: Simplify right side
   6,666x = 105,226,564
5. Step 5: Solve for x
   x = 105,226,564/6,666
6. Step 6: Final answer
   x = 15,785.56