Finding the Third Proportional to 176,321.50 and 379,155.50

Step by Step Solution

1. Step 1: Write the proportion equation
   176,321.50 : 379,155.50 = 379,155.50 : x
2. Step 2: Convert to fraction form
   176,321.50/379,155.50 = 379,155.50/x
3. Step 3: Cross multiply
   176,321.50x = 379,155.50 × 379,155.50
4. Step 4: Simplify right side
   176,321.50x = 143,758,893,180.25
5. Step 5: Solve for x
   x = 143,758,893,180.25/176,321.50
6. Step 6: Final answer
   x = 815,322.54