Finding the Third Proportional to 329,556.50 and 719,521

Step by Step Solution

1. Step 1: Write the proportion equation
   329,556.50 : 719,521 = 719,521 : x
2. Step 2: Convert to fraction form
   329,556.50/719,521 = 719,521/x
3. Step 3: Cross multiply
   329,556.50x = 719,521 × 719,521
4. Step 4: Simplify right side
   329,556.50x = 517,710,469,441
5. Step 5: Solve for x
   x = 517,710,469,441/329,556.50
6. Step 6: Final answer
   x = 1,570,930.84