Finding the Third Proportional to 1,139,916 and 1,778,884

Step by Step Solution

1. Step 1: Write the proportion equation
   1,139,916 : 1,778,884 = 1,778,884 : x
2. Step 2: Convert to fraction form
   1,139,916/1,778,884 = 1,778,884/x
3. Step 3: Cross multiply
   1,139,916x = 1,778,884 × 1,778,884
4. Step 4: Simplify right side
   1,139,916x = 3,164,428,285,456
5. Step 5: Solve for x
   x = 3,164,428,285,456/1,139,916
6. Step 6: Final answer
   x = 2,776,018.83