Finding the Third Proportional to 288,282 and 663,559.50

Step by Step Solution

1. Step 1: Write the proportion equation
   288,282 : 663,559.50 = 663,559.50 : x
2. Step 2: Convert to fraction form
   288,282/663,559.50 = 663,559.50/x
3. Step 3: Cross multiply
   288,282x = 663,559.50 × 663,559.50
4. Step 4: Simplify right side
   288,282x = 440,311,210,040.25
5. Step 5: Solve for x
   x = 440,311,210,040.25/288,282
6. Step 6: Final answer
   x = 1,527,362.83