Finding the Third Proportional to 2,044,390 and 4,219,892

Step by Step Solution

1. Step 1: Write the proportion equation
   2,044,390 : 4,219,892 = 4,219,892 : x
2. Step 2: Convert to fraction form
   2,044,390/4,219,892 = 4,219,892/x
3. Step 3: Cross multiply
   2,044,390x = 4,219,892 × 4,219,892
4. Step 4: Simplify right side
   2,044,390x = 17,807,488,491,664
5. Step 5: Solve for x
   x = 17,807,488,491,664/2,044,390
6. Step 6: Final answer
   x = 8,710,416.55