Finding the Third Proportional to 1,282,392 and 1,993,590

Step by Step Solution

1. Step 1: Write the proportion equation
   1,282,392 : 1,993,590 = 1,993,590 : x
2. Step 2: Convert to fraction form
   1,282,392/1,993,590 = 1,993,590/x
3. Step 3: Cross multiply
   1,282,392x = 1,993,590 × 1,993,590
4. Step 4: Simplify right side
   1,282,392x = 3,974,401,088,100
5. Step 5: Solve for x
   x = 3,974,401,088,100/1,282,392
6. Step 6: Final answer
   x = 3,099,209.20