Finding the Third Proportional to 154,467 and 338,458.50

Step by Step Solution

1. Step 1: Write the proportion equation
   154,467 : 338,458.50 = 338,458.50 : x
2. Step 2: Convert to fraction form
   154,467/338,458.50 = 338,458.50/x
3. Step 3: Cross multiply
   154,467x = 338,458.50 × 338,458.50
4. Step 4: Simplify right side
   154,467x = 114,554,156,222.25
5. Step 5: Solve for x
   x = 114,554,156,222.25/154,467
6. Step 6: Final answer
   x = 741,609.25