Finding the Third Proportional to 1,821,223 and 2,672,784

Step by Step Solution

1. Step 1: Write the proportion equation
   1,821,223 : 2,672,784 = 2,672,784 : x
2. Step 2: Convert to fraction form
   1,821,223/2,672,784 = 2,672,784/x
3. Step 3: Cross multiply
   1,821,223x = 2,672,784 × 2,672,784
4. Step 4: Simplify right side
   1,821,223x = 7,143,774,310,656
5. Step 5: Solve for x
   x = 7,143,774,310,656/1,821,223
6. Step 6: Final answer
   x = 3,922,514.88