Finding the Third Proportional to 178,159.50 and 371,059.50

Step by Step Solution

1. Step 1: Write the proportion equation
   178,159.50 : 371,059.50 = 371,059.50 : x
2. Step 2: Convert to fraction form
   178,159.50/371,059.50 = 371,059.50/x
3. Step 3: Cross multiply
   178,159.50x = 371,059.50 × 371,059.50
4. Step 4: Simplify right side
   178,159.50x = 137,685,152,540.25
5. Step 5: Solve for x
   x = 137,685,152,540.25/178,159.50
6. Step 6: Final answer
   x = 772,819.59