Finding the Third Proportional to 348,726 and 739,299.50

Step by Step Solution

1. Step 1: Write the proportion equation
   348,726 : 739,299.50 = 739,299.50 : x
2. Step 2: Convert to fraction form
   348,726/739,299.50 = 739,299.50/x
3. Step 3: Cross multiply
   348,726x = 739,299.50 × 739,299.50
4. Step 4: Simplify right side
   348,726x = 546,563,750,700.25
5. Step 5: Solve for x
   x = 546,563,750,700.25/348,726
6. Step 6: Final answer
   x = 1,567,315.75