Finding the Third Proportional to 1,424,560 and 2,218,536

Step by Step Solution

1. Step 1: Write the proportion equation
   1,424,560 : 2,218,536 = 2,218,536 : x
2. Step 2: Convert to fraction form
   1,424,560/2,218,536 = 2,218,536/x
3. Step 3: Cross multiply
   1,424,560x = 2,218,536 × 2,218,536
4. Step 4: Simplify right side
   1,424,560x = 4,921,901,983,296
5. Step 5: Solve for x
   x = 4,921,901,983,296/1,424,560
6. Step 6: Final answer
   x = 3,455,033.12