Finding the Third Proportional to 864,513 and 1,389,033

Step by Step Solution

1. Step 1: Write the proportion equation
   864,513 : 1,389,033 = 1,389,033 : x
2. Step 2: Convert to fraction form
   864,513/1,389,033 = 1,389,033/x
3. Step 3: Cross multiply
   864,513x = 1,389,033 × 1,389,033
4. Step 4: Simplify right side
   864,513x = 1,929,412,675,089
5. Step 5: Solve for x
   x = 1,929,412,675,089/864,513
6. Step 6: Final answer
   x = 2,231,791.40