Finding the Third Proportional to 683,658 and 1,490,326

Step by Step Solution

1. Step 1: Write the proportion equation
   683,658 : 1,490,326 = 1,490,326 : x
2. Step 2: Convert to fraction form
   683,658/1,490,326 = 1,490,326/x
3. Step 3: Cross multiply
   683,658x = 1,490,326 × 1,490,326
4. Step 4: Simplify right side
   683,658x = 2,221,071,586,276
5. Step 5: Solve for x
   x = 2,221,071,586,276/683,658
6. Step 6: Final answer
   x = 3,248,805.08