Finding the Third Proportional to 915,393 and 1,993,521

Step by Step Solution

1. Step 1: Write the proportion equation
   915,393 : 1,993,521 = 1,993,521 : x
2. Step 2: Convert to fraction form
   915,393/1,993,521 = 1,993,521/x
3. Step 3: Cross multiply
   915,393x = 1,993,521 × 1,993,521
4. Step 4: Simplify right side
   915,393x = 3,974,125,977,441
5. Step 5: Solve for x
   x = 3,974,125,977,441/915,393
6. Step 6: Final answer
   x = 4,341,442.39