Finding the Third Proportional to 178,869 and 242,890.50

Step by Step Solution

1. Step 1: Write the proportion equation
   178,869 : 242,890.50 = 242,890.50 : x
2. Step 2: Convert to fraction form
   178,869/242,890.50 = 242,890.50/x
3. Step 3: Cross multiply
   178,869x = 242,890.50 × 242,890.50
4. Step 4: Simplify right side
   178,869x = 58,995,794,990.25
5. Step 5: Solve for x
   x = 58,995,794,990.25/178,869
6. Step 6: Final answer
   x = 329,826.83