Finding the Third Proportional to 686,758 and 1,009,582

Step by Step Solution

1. Step 1: Write the proportion equation
   686,758 : 1,009,582 = 1,009,582 : x
2. Step 2: Convert to fraction form
   686,758/1,009,582 = 1,009,582/x
3. Step 3: Cross multiply
   686,758x = 1,009,582 × 1,009,582
4. Step 4: Simplify right side
   686,758x = 1,019,255,814,724
5. Step 5: Solve for x
   x = 1,019,255,814,724/686,758
6. Step 6: Final answer
   x = 1,484,155.72