Finding the Third Proportional to 1,890,818 and 4,047,420

Step by Step Solution

1. Step 1: Write the proportion equation
   1,890,818 : 4,047,420 = 4,047,420 : x
2. Step 2: Convert to fraction form
   1,890,818/4,047,420 = 4,047,420/x
3. Step 3: Cross multiply
   1,890,818x = 4,047,420 × 4,047,420
4. Step 4: Simplify right side
   1,890,818x = 16,381,608,656,400
5. Step 5: Solve for x
   x = 16,381,608,656,400/1,890,818
6. Step 6: Final answer
   x = 8,663,768.09