Finding the Third Proportional to 1,854,578 and 3,908,404

Step by Step Solution

1. Step 1: Write the proportion equation
   1,854,578 : 3,908,404 = 3,908,404 : x
2. Step 2: Convert to fraction form
   1,854,578/3,908,404 = 3,908,404/x
3. Step 3: Cross multiply
   1,854,578x = 3,908,404 × 3,908,404
4. Step 4: Simplify right side
   1,854,578x = 15,275,621,827,216
5. Step 5: Solve for x
   x = 15,275,621,827,216/1,854,578
6. Step 6: Final answer
   x = 8,236,710.36