Finding the Third Proportional to 915,392 and 1,993,520

Step by Step Solution

1. Step 1: Write the proportion equation
   915,392 : 1,993,520 = 1,993,520 : x
2. Step 2: Convert to fraction form
   915,392/1,993,520 = 1,993,520/x
3. Step 3: Cross multiply
   915,392x = 1,993,520 × 1,993,520
4. Step 4: Simplify right side
   915,392x = 3,974,121,990,400
5. Step 5: Solve for x
   x = 3,974,121,990,400/915,392
6. Step 6: Final answer
   x = 4,341,442.78