Finding the Third Proportional to 1,917,788 and 4,134,464

Step by Step Solution

1. Step 1: Write the proportion equation
   1,917,788 : 4,134,464 = 4,134,464 : x
2. Step 2: Convert to fraction form
   1,917,788/4,134,464 = 4,134,464/x
3. Step 3: Cross multiply
   1,917,788x = 4,134,464 × 4,134,464
4. Step 4: Simplify right side
   1,917,788x = 17,093,792,567,296
5. Step 5: Solve for x
   x = 17,093,792,567,296/1,917,788
6. Step 6: Final answer
   x = 8,913,285.81