Finding the Third Proportional to 348,406.50 and 763,206

Step by Step Solution

1. Step 1: Write the proportion equation
   348,406.50 : 763,206 = 763,206 : x
2. Step 2: Convert to fraction form
   348,406.50/763,206 = 763,206/x
3. Step 3: Cross multiply
   348,406.50x = 763,206 × 763,206
4. Step 4: Simplify right side
   348,406.50x = 582,483,398,436
5. Step 5: Solve for x
   x = 582,483,398,436/348,406.50
6. Step 6: Final answer
   x = 1,671,849.98