Finding the Third Proportional to 147,359.50 and 321,704

Step by Step Solution

1. Step 1: Write the proportion equation
   147,359.50 : 321,704 = 321,704 : x
2. Step 2: Convert to fraction form
   147,359.50/321,704 = 321,704/x
3. Step 3: Cross multiply
   147,359.50x = 321,704 × 321,704
4. Step 4: Simplify right side
   147,359.50x = 103,493,463,616
5. Step 5: Solve for x
   x = 103,493,463,616/147,359.50
6. Step 6: Final answer
   x = 702,319.59