Finding the Third Proportional to 164,485.50 and 353,919

Step by Step Solution

1. Step 1: Write the proportion equation
   164,485.50 : 353,919 = 353,919 : x
2. Step 2: Convert to fraction form
   164,485.50/353,919 = 353,919/x
3. Step 3: Cross multiply
   164,485.50x = 353,919 × 353,919
4. Step 4: Simplify right side
   164,485.50x = 125,258,658,561
5. Step 5: Solve for x
   x = 125,258,658,561/164,485.50
6. Step 6: Final answer
   x = 761,517.94