Finding the Third Proportional to 638,585.25 and 981,843

Step by Step Solution

1. Step 1: Write the proportion equation
   638,585.25 : 981,843 = 981,843 : x
2. Step 2: Convert to fraction form
   638,585.25/981,843 = 981,843/x
3. Step 3: Cross multiply
   638,585.25x = 981,843 × 981,843
4. Step 4: Simplify right side
   638,585.25x = 964,015,676,649
5. Step 5: Solve for x
   x = 964,015,676,649/638,585.25
6. Step 6: Final answer
   x = 1,509,611.56