Finding the Third Proportional to 693,990 and 1,606,491

Step by Step Solution

1. Step 1: Write the proportion equation
   693,990 : 1,606,491 = 1,606,491 : x
2. Step 2: Convert to fraction form
   693,990/1,606,491 = 1,606,491/x
3. Step 3: Cross multiply
   693,990x = 1,606,491 × 1,606,491
4. Step 4: Simplify right side
   693,990x = 2,580,813,333,081
5. Step 5: Solve for x
   x = 2,580,813,333,081/693,990
6. Step 6: Final answer
   x = 3,718,804.79