Finding the Third Proportional to 819,072 and 1,786,608

Step by Step Solution

1. Step 1: Write the proportion equation
   819,072 : 1,786,608 = 1,786,608 : x
2. Step 2: Convert to fraction form
   819,072/1,786,608 = 1,786,608/x
3. Step 3: Cross multiply
   819,072x = 1,786,608 × 1,786,608
4. Step 4: Simplify right side
   819,072x = 3,191,968,145,664
5. Step 5: Solve for x
   x = 3,191,968,145,664/819,072
6. Step 6: Final answer
   x = 3,897,054.41