Finding the Third Proportional to 154,631 and 238,930.50

Step by Step Solution

1. Step 1: Write the proportion equation
   154,631 : 238,930.50 = 238,930.50 : x
2. Step 2: Convert to fraction form
   154,631/238,930.50 = 238,930.50/x
3. Step 3: Cross multiply
   154,631x = 238,930.50 × 238,930.50
4. Step 4: Simplify right side
   154,631x = 57,087,783,830.25
5. Step 5: Solve for x
   x = 57,087,783,830.25/154,631
6. Step 6: Final answer
   x = 369,187.19