Finding the Third Proportional to 381,936.50 and 840,141.25

Step by Step Solution

1. Step 1: Write the proportion equation
   381,936.50 : 840,141.25 = 840,141.25 : x
2. Step 2: Convert to fraction form
   381,936.50/840,141.25 = 840,141.25/x
3. Step 3: Cross multiply
   381,936.50x = 840,141.25 × 840,141.25
4. Step 4: Simplify right side
   381,936.50x = 705,837,319,951.56
5. Step 5: Solve for x
   x = 705,837,319,951.56/381,936.50
6. Step 6: Final answer
   x = 1,848,048.88