Finding the Third Proportional to 1,139,880 and 1,778,832

Step by Step Solution

1. Step 1: Write the proportion equation
   1,139,880 : 1,778,832 = 1,778,832 : x
2. Step 2: Convert to fraction form
   1,139,880/1,778,832 = 1,778,832/x
3. Step 3: Cross multiply
   1,139,880x = 1,778,832 × 1,778,832
4. Step 4: Simplify right side
   1,139,880x = 3,164,243,284,224
5. Step 5: Solve for x
   x = 3,164,243,284,224/1,139,880
6. Step 6: Final answer
   x = 2,775,944.21