Finding the Third Proportional to 1,018,224 and 2,138,832

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018,224 : 2,138,832 = 2,138,832 : x
2. Step 2: Convert to fraction form
   1,018,224/2,138,832 = 2,138,832/x
3. Step 3: Cross multiply
   1,018,224x = 2,138,832 × 2,138,832
4. Step 4: Simplify right side
   1,018,224x = 4,574,602,324,224
5. Step 5: Solve for x
   x = 4,574,602,324,224/1,018,224
6. Step 6: Final answer
   x = 4,492,726.87