Finding the Third Proportional to 403,640 and 886,004

Step by Step Solution

1. Step 1: Write the proportion equation
   403,640 : 886,004 = 886,004 : x
2. Step 2: Convert to fraction form
   403,640/886,004 = 886,004/x
3. Step 3: Cross multiply
   403,640x = 886,004 × 886,004
4. Step 4: Simplify right side
   403,640x = 785,003,088,016
5. Step 5: Solve for x
   x = 785,003,088,016/403,640
6. Step 6: Final answer
   x = 1,944,809.95