Finding the Third Proportional to 638,581.50 and 981,837

Step by Step Solution

1. Step 1: Write the proportion equation
   638,581.50 : 981,837 = 981,837 : x
2. Step 2: Convert to fraction form
   638,581.50/981,837 = 981,837/x
3. Step 3: Cross multiply
   638,581.50x = 981,837 × 981,837
4. Step 4: Simplify right side
   638,581.50x = 964,003,894,569
5. Step 5: Solve for x
   x = 964,003,894,569/638,581.50
6. Step 6: Final answer
   x = 1,509,601.98