Finding the Third Proportional to 348,078 and 763,404

Step by Step Solution

1. Step 1: Write the proportion equation
   348,078 : 763,404 = 763,404 : x
2. Step 2: Convert to fraction form
   348,078/763,404 = 763,404/x
3. Step 3: Cross multiply
   348,078x = 763,404 × 763,404
4. Step 4: Simplify right side
   348,078x = 582,785,667,216
5. Step 5: Solve for x
   x = 582,785,667,216/348,078
6. Step 6: Final answer
   x = 1,674,296.18