Finding the Third Proportional to 728,144 and 1,596,255.50

Step by Step Solution

1. Step 1: Write the proportion equation
   728,144 : 1,596,255.50 = 1,596,255.50 : x
2. Step 2: Convert to fraction form
   728,144/1,596,255.50 = 1,596,255.50/x
3. Step 3: Cross multiply
   728,144x = 1,596,255.50 × 1,596,255.50
4. Step 4: Simplify right side
   728,144x = 2,548,031,621,280.25
5. Step 5: Solve for x
   x = 2,548,031,621,280.25/728,144
6. Step 6: Final answer
   x = 3,499,351.26