Finding the Third Proportional to 5,415 and 10,074

Step by Step Solution

1. Step 1: Write the proportion equation
   5,415 : 10,074 = 10,074 : x
2. Step 2: Convert to fraction form
   5,415/10,074 = 10,074/x
3. Step 3: Cross multiply
   5,415x = 10,074 × 10,074
4. Step 4: Simplify right side
   5,415x = 101,485,476
5. Step 5: Solve for x
   x = 101,485,476/5,415
6. Step 6: Final answer
   x = 18,741.55