Finding the Third Proportional to 1,449,360 and 2,131,416

Step by Step Solution

1. Step 1: Write the proportion equation
   1,449,360 : 2,131,416 = 2,131,416 : x
2. Step 2: Convert to fraction form
   1,449,360/2,131,416 = 2,131,416/x
3. Step 3: Cross multiply
   1,449,360x = 2,131,416 × 2,131,416
4. Step 4: Simplify right side
   1,449,360x = 4,542,934,165,056
5. Step 5: Solve for x
   x = 4,542,934,165,056/1,449,360
6. Step 6: Final answer
   x = 3,134,441.52