Finding the Third Proportional to 864,469.50 and 1,388,967

Step by Step Solution

1. Step 1: Write the proportion equation
   864,469.50 : 1,388,967 = 1,388,967 : x
2. Step 2: Convert to fraction form
   864,469.50/1,388,967 = 1,388,967/x
3. Step 3: Cross multiply
   864,469.50x = 1,388,967 × 1,388,967
4. Step 4: Simplify right side
   864,469.50x = 1,929,229,327,089
5. Step 5: Solve for x
   x = 1,929,229,327,089/864,469.50
6. Step 6: Final answer
   x = 2,231,691.61