Finding the Third Proportional to 154,930.50 and 328,464

Step by Step Solution

1. Step 1: Write the proportion equation
   154,930.50 : 328,464 = 328,464 : x
2. Step 2: Convert to fraction form
   154,930.50/328,464 = 328,464/x
3. Step 3: Cross multiply
   154,930.50x = 328,464 × 328,464
4. Step 4: Simplify right side
   154,930.50x = 107,888,599,296
5. Step 5: Solve for x
   x = 107,888,599,296/154,930.50
6. Step 6: Final answer
   x = 696,367.72