Finding the Third Proportional to 1,393,512 and 2,036,490

Step by Step Solution

1. Step 1: Write the proportion equation
   1,393,512 : 2,036,490 = 2,036,490 : x
2. Step 2: Convert to fraction form
   1,393,512/2,036,490 = 2,036,490/x
3. Step 3: Cross multiply
   1,393,512x = 2,036,490 × 2,036,490
4. Step 4: Simplify right side
   1,393,512x = 4,147,291,520,100
5. Step 5: Solve for x
   x = 4,147,291,520,100/1,393,512
6. Step 6: Final answer
   x = 2,976,143.38