Finding the Third Proportional to 155,185 and 247,945.50

Step by Step Solution

1. Step 1: Write the proportion equation
   155,185 : 247,945.50 = 247,945.50 : x
2. Step 2: Convert to fraction form
   155,185/247,945.50 = 247,945.50/x
3. Step 3: Cross multiply
   155,185x = 247,945.50 × 247,945.50
4. Step 4: Simplify right side
   155,185x = 61,476,970,970.25
5. Step 5: Solve for x
   x = 61,476,970,970.25/155,185
6. Step 6: Final answer
   x = 396,152.79