Finding the Third Proportional to 148,405.50 and 328,824

Step by Step Solution

1. Step 1: Write the proportion equation
   148,405.50 : 328,824 = 328,824 : x
2. Step 2: Convert to fraction form
   148,405.50/328,824 = 328,824/x
3. Step 3: Cross multiply
   148,405.50x = 328,824 × 328,824
4. Step 4: Simplify right side
   148,405.50x = 108,125,222,976
5. Step 5: Solve for x
   x = 108,125,222,976/148,405.50
6. Step 6: Final answer
   x = 728,579.62