Finding the Third Proportional to 344,679 and 729,100.50

Step by Step Solution

1. Step 1: Write the proportion equation
   344,679 : 729,100.50 = 729,100.50 : x
2. Step 2: Convert to fraction form
   344,679/729,100.50 = 729,100.50/x
3. Step 3: Cross multiply
   344,679x = 729,100.50 × 729,100.50
4. Step 4: Simplify right side
   344,679x = 531,587,539,100.25
5. Step 5: Solve for x
   x = 531,587,539,100.25/344,679
6. Step 6: Final answer
   x = 1,542,268.43