Finding the Third Proportional to 178,525 and 276,605.50

Step by Step Solution

1. Step 1: Write the proportion equation
   178,525 : 276,605.50 = 276,605.50 : x
2. Step 2: Convert to fraction form
   178,525/276,605.50 = 276,605.50/x
3. Step 3: Cross multiply
   178,525x = 276,605.50 × 276,605.50
4. Step 4: Simplify right side
   178,525x = 76,510,602,630.25
5. Step 5: Solve for x
   x = 76,510,602,630.25/178,525
6. Step 6: Final answer
   x = 428,570.80