Finding the Third Proportional to 683,138 and 1,020,891

Step by Step Solution

1. Step 1: Write the proportion equation
   683,138 : 1,020,891 = 1,020,891 : x
2. Step 2: Convert to fraction form
   683,138/1,020,891 = 1,020,891/x
3. Step 3: Cross multiply
   683,138x = 1,020,891 × 1,020,891
4. Step 4: Simplify right side
   683,138x = 1,042,218,433,881
5. Step 5: Solve for x
   x = 1,042,218,433,881/683,138
6. Step 6: Final answer
   x = 1,525,633.82