Finding the Third Proportional to 178,236 and 396,319.50

Step by Step Solution

1. Step 1: Write the proportion equation
   178,236 : 396,319.50 = 396,319.50 : x
2. Step 2: Convert to fraction form
   178,236/396,319.50 = 396,319.50/x
3. Step 3: Cross multiply
   178,236x = 396,319.50 × 396,319.50
4. Step 4: Simplify right side
   178,236x = 157,069,146,080.25
5. Step 5: Solve for x
   x = 157,069,146,080.25/178,236
6. Step 6: Final answer
   x = 881,242.54