Finding the Third Proportional to 728,340 and 1,485,588

Step by Step Solution

1. Step 1: Write the proportion equation
   728,340 : 1,485,588 = 1,485,588 : x
2. Step 2: Convert to fraction form
   728,340/1,485,588 = 1,485,588/x
3. Step 3: Cross multiply
   728,340x = 1,485,588 × 1,485,588
4. Step 4: Simplify right side
   728,340x = 2,206,971,705,744
5. Step 5: Solve for x
   x = 2,206,971,705,744/728,340
6. Step 6: Final answer
   x = 3,030,139.37