Finding the Third Proportional to 178,978.50 and 250,869

Step by Step Solution

1. Step 1: Write the proportion equation
   178,978.50 : 250,869 = 250,869 : x
2. Step 2: Convert to fraction form
   178,978.50/250,869 = 250,869/x
3. Step 3: Cross multiply
   178,978.50x = 250,869 × 250,869
4. Step 4: Simplify right side
   178,978.50x = 62,935,255,161
5. Step 5: Solve for x
   x = 62,935,255,161/178,978.50
6. Step 6: Final answer
   x = 351,635.84