Finding the Third Proportional to 2,018,731 and 4,429,814

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018,731 : 4,429,814 = 4,429,814 : x
2. Step 2: Convert to fraction form
   2,018,731/4,429,814 = 4,429,814/x
3. Step 3: Cross multiply
   2,018,731x = 4,429,814 × 4,429,814
4. Step 4: Simplify right side
   2,018,731x = 19,623,252,074,596
5. Step 5: Solve for x
   x = 19,623,252,074,596/2,018,731
6. Step 6: Final answer
   x = 9,720,587.87