Finding the Third Proportional to 683,648 and 1,490,308

Step by Step Solution

1. Step 1: Write the proportion equation
   683,648 : 1,490,308 = 1,490,308 : x
2. Step 2: Convert to fraction form
   683,648/1,490,308 = 1,490,308/x
3. Step 3: Cross multiply
   683,648x = 1,490,308 × 1,490,308
4. Step 4: Simplify right side
   683,648x = 2,221,017,934,864
5. Step 5: Solve for x
   x = 2,221,017,934,864/683,648
6. Step 6: Final answer
   x = 3,248,774.13