Finding the Third Proportional to 680,540 and 1,491,326

Step by Step Solution

1. Step 1: Write the proportion equation
   680,540 : 1,491,326 = 1,491,326 : x
2. Step 2: Convert to fraction form
   680,540/1,491,326 = 1,491,326/x
3. Step 3: Cross multiply
   680,540x = 1,491,326 × 1,491,326
4. Step 4: Simplify right side
   680,540x = 2,224,053,238,276
5. Step 5: Solve for x
   x = 2,224,053,238,276/680,540
6. Step 6: Final answer
   x = 3,268,071.29