Finding the Third Proportional to 348,361.50 and 763,111.50

Step by Step Solution

1. Step 1: Write the proportion equation
   348,361.50 : 763,111.50 = 763,111.50 : x
2. Step 2: Convert to fraction form
   348,361.50/763,111.50 = 763,111.50/x
3. Step 3: Cross multiply
   348,361.50x = 763,111.50 × 763,111.50
4. Step 4: Simplify right side
   348,361.50x = 582,339,161,432.25
5. Step 5: Solve for x
   x = 582,339,161,432.25/348,361.50
6. Step 6: Final answer
   x = 1,671,651.89