Finding the Third Proportional to 728,410 and 1,485,710

Step by Step Solution

1. Step 1: Write the proportion equation
   728,410 : 1,485,710 = 1,485,710 : x
2. Step 2: Convert to fraction form
   728,410/1,485,710 = 1,485,710/x
3. Step 3: Cross multiply
   728,410x = 1,485,710 × 1,485,710
4. Step 4: Simplify right side
   728,410x = 2,207,334,204,100
5. Step 5: Solve for x
   x = 2,207,334,204,100/728,410
6. Step 6: Final answer
   x = 3,030,345.83