Finding the Third Proportional to 688,988 and 1,013,790

Step by Step Solution

1. Step 1: Write the proportion equation
   688,988 : 1,013,790 = 1,013,790 : x
2. Step 2: Convert to fraction form
   688,988/1,013,790 = 1,013,790/x
3. Step 3: Cross multiply
   688,988x = 1,013,790 × 1,013,790
4. Step 4: Simplify right side
   688,988x = 1,027,770,164,100
5. Step 5: Solve for x
   x = 1,027,770,164,100/688,988
6. Step 6: Final answer
   x = 1,491,709.82