Finding the Third Proportional to 348,729 and 739,306.50

Step by Step Solution

1. Step 1: Write the proportion equation
   348,729 : 739,306.50 = 739,306.50 : x
2. Step 2: Convert to fraction form
   348,729/739,306.50 = 739,306.50/x
3. Step 3: Cross multiply
   348,729x = 739,306.50 × 739,306.50
4. Step 4: Simplify right side
   348,729x = 546,574,100,942.25
5. Step 5: Solve for x
   x = 546,574,100,942.25/348,729
6. Step 6: Final answer
   x = 1,567,331.94