Finding the Third Proportional to 1,917,770 and 4,134,430

Step by Step Solution

1. Step 1: Write the proportion equation
   1,917,770 : 4,134,430 = 4,134,430 : x
2. Step 2: Convert to fraction form
   1,917,770/4,134,430 = 4,134,430/x
3. Step 3: Cross multiply
   1,917,770x = 4,134,430 × 4,134,430
4. Step 4: Simplify right side
   1,917,770x = 17,093,511,424,900
5. Step 5: Solve for x
   x = 17,093,511,424,900/1,917,770
6. Step 6: Final answer
   x = 8,913,222.87