Finding the Third Proportional to 631,342.69 and 1,388,854.69

Step by Step Solution

1. Step 1: Write the proportion equation
   631,342.69 : 1,388,854.69 = 1,388,854.69 : x
2. Step 2: Convert to fraction form
   631,342.69/1,388,854.69 = 1,388,854.69/x
3. Step 3: Cross multiply
   631,342.69x = 1,388,854.69 × 1,388,854.69
4. Step 4: Simplify right side
   631,342.69x = 1,928,917,342,990.72
5. Step 5: Solve for x
   x = 1,928,917,342,990.72/631,342.69
6. Step 6: Final answer
   x = 3,055,262.03