Finding the Third Proportional to 2,983,830 and 6,439,404

Step by Step Solution

1. Step 1: Write the proportion equation
   2,983,830 : 6,439,404 = 6,439,404 : x
2. Step 2: Convert to fraction form
   2,983,830/6,439,404 = 6,439,404/x
3. Step 3: Cross multiply
   2,983,830x = 6,439,404 × 6,439,404
4. Step 4: Simplify right side
   2,983,830x = 41,465,923,875,216
5. Step 5: Solve for x
   x = 41,465,923,875,216/2,983,830
6. Step 6: Final answer
   x = 13,896,878.80