Finding the Third Proportional to 887,816 and 1,391,223

Step by Step Solution

1. Step 1: Write the proportion equation
   887,816 : 1,391,223 = 1,391,223 : x
2. Step 2: Convert to fraction form
   887,816/1,391,223 = 1,391,223/x
3. Step 3: Cross multiply
   887,816x = 1,391,223 × 1,391,223
4. Step 4: Simplify right side
   887,816x = 1,935,501,435,729
5. Step 5: Solve for x
   x = 1,935,501,435,729/887,816
6. Step 6: Final answer
   x = 2,180,070.46