Finding the Third Proportional to 728,910 and 1,531,530

Step by Step Solution

1. Step 1: Write the proportion equation
   728,910 : 1,531,530 = 1,531,530 : x
2. Step 2: Convert to fraction form
   728,910/1,531,530 = 1,531,530/x
3. Step 3: Cross multiply
   728,910x = 1,531,530 × 1,531,530
4. Step 4: Simplify right side
   728,910x = 2,345,584,140,900
5. Step 5: Solve for x
   x = 2,345,584,140,900/728,910
6. Step 6: Final answer
   x = 3,217,933.82