Finding the Third Proportional to 688,298 and 1,036,612

Step by Step Solution

1. Step 1: Write the proportion equation
   688,298 : 1,036,612 = 1,036,612 : x
2. Step 2: Convert to fraction form
   688,298/1,036,612 = 1,036,612/x
3. Step 3: Cross multiply
   688,298x = 1,036,612 × 1,036,612
4. Step 4: Simplify right side
   688,298x = 1,074,564,438,544
5. Step 5: Solve for x
   x = 1,074,564,438,544/688,298
6. Step 6: Final answer
   x = 1,561,190.70