Finding the Third Proportional to 6,645.50 and 10,426

Step by Step Solution

1. Step 1: Write the proportion equation
   6,645.50 : 10,426 = 10,426 : x
2. Step 2: Convert to fraction form
   6,645.50/10,426 = 10,426/x
3. Step 3: Cross multiply
   6,645.50x = 10,426 × 10,426
4. Step 4: Simplify right side
   6,645.50x = 108,701,476
5. Step 5: Solve for x
   x = 108,701,476/6,645.50
6. Step 6: Final answer
   x = 16,357.16