Finding the Third Proportional to 321,030 and 476,923.50

Step by Step Solution

1. Step 1: Write the proportion equation
   321,030 : 476,923.50 = 476,923.50 : x
2. Step 2: Convert to fraction form
   321,030/476,923.50 = 476,923.50/x
3. Step 3: Cross multiply
   321,030x = 476,923.50 × 476,923.50
4. Step 4: Simplify right side
   321,030x = 227,456,024,852.25
5. Step 5: Solve for x
   x = 227,456,024,852.25/321,030
6. Step 6: Final answer
   x = 708,519.53