Finding the Third Proportional to 921,309 and 1,993,530

Step by Step Solution

1. Step 1: Write the proportion equation
   921,309 : 1,993,530 = 1,993,530 : x
2. Step 2: Convert to fraction form
   921,309/1,993,530 = 1,993,530/x
3. Step 3: Cross multiply
   921,309x = 1,993,530 × 1,993,530
4. Step 4: Simplify right side
   921,309x = 3,974,161,860,900
5. Step 5: Solve for x
   x = 3,974,161,860,900/921,309
6. Step 6: Final answer
   x = 4,313,603.65