Finding the Third Proportional to 858,493.69 and 1,328,695.31

Step by Step Solution

1. Step 1: Write the proportion equation
   858,493.69 : 1,328,695.31 = 1,328,695.31 : x
2. Step 2: Convert to fraction form
   858,493.69/1,328,695.31 = 1,328,695.31/x
3. Step 3: Cross multiply
   858,493.69x = 1,328,695.31 × 1,328,695.31
4. Step 4: Simplify right side
   858,493.69x = 1,765,431,233,459.47
5. Step 5: Solve for x
   x = 1,765,431,233,459.47/858,493.69
6. Step 6: Final answer
   x = 2,056,428.90