Finding the Third Proportional to 1,688,366 and 2,418,555

Step by Step Solution

1. Step 1: Write the proportion equation
   1,688,366 : 2,418,555 = 2,418,555 : x
2. Step 2: Convert to fraction form
   1,688,366/2,418,555 = 2,418,555/x
3. Step 3: Cross multiply
   1,688,366x = 2,418,555 × 2,418,555
4. Step 4: Simplify right side
   1,688,366x = 5,849,408,288,025
5. Step 5: Solve for x
   x = 5,849,408,288,025/1,688,366
6. Step 6: Final answer
   x = 3,464,538.07