Finding the Third Proportional to 1,890,812 and 4,047,408

Step by Step Solution

1. Step 1: Write the proportion equation
   1,890,812 : 4,047,408 = 4,047,408 : x
2. Step 2: Convert to fraction form
   1,890,812/4,047,408 = 4,047,408/x
3. Step 3: Cross multiply
   1,890,812x = 4,047,408 × 4,047,408
4. Step 4: Simplify right side
   1,890,812x = 16,381,511,518,464
5. Step 5: Solve for x
   x = 16,381,511,518,464/1,890,812
6. Step 6: Final answer
   x = 8,663,744.21