Finding the Third Proportional to 1,905,840 and 4,189,542

Step by Step Solution

1. Step 1: Write the proportion equation
   1,905,840 : 4,189,542 = 4,189,542 : x
2. Step 2: Convert to fraction form
   1,905,840/4,189,542 = 4,189,542/x
3. Step 3: Cross multiply
   1,905,840x = 4,189,542 × 4,189,542
4. Step 4: Simplify right side
   1,905,840x = 17,552,262,169,764
5. Step 5: Solve for x
   x = 17,552,262,169,764/1,905,840
6. Step 6: Final answer
   x = 9,209,724.93