Finding the Third Proportional to 348,358.50 and 763,105.50

Step by Step Solution

1. Step 1: Write the proportion equation
   348,358.50 : 763,105.50 = 763,105.50 : x
2. Step 2: Convert to fraction form
   348,358.50/763,105.50 = 763,105.50/x
3. Step 3: Cross multiply
   348,358.50x = 763,105.50 × 763,105.50
4. Step 4: Simplify right side
   348,358.50x = 582,330,004,130.25
5. Step 5: Solve for x
   x = 582,330,004,130.25/348,358.50
6. Step 6: Final answer
   x = 1,671,640.00