Finding the Third Proportional to 692,386 and 1,439,809

Step by Step Solution

1. Step 1: Write the proportion equation
   692,386 : 1,439,809 = 1,439,809 : x
2. Step 2: Convert to fraction form
   692,386/1,439,809 = 1,439,809/x
3. Step 3: Cross multiply
   692,386x = 1,439,809 × 1,439,809
4. Step 4: Simplify right side
   692,386x = 2,073,049,956,481
5. Step 5: Solve for x
   x = 2,073,049,956,481/692,386
6. Step 6: Final answer
   x = 2,994,066.83