Finding the Third Proportional to 388,503 and 600,010.50

Step by Step Solution

1. Step 1: Write the proportion equation
   388,503 : 600,010.50 = 600,010.50 : x
2. Step 2: Convert to fraction form
   388,503/600,010.50 = 600,010.50/x
3. Step 3: Cross multiply
   388,503x = 600,010.50 × 600,010.50
4. Step 4: Simplify right side
   388,503x = 360,012,600,110.25
5. Step 5: Solve for x
   x = 360,012,600,110.25/388,503
6. Step 6: Final answer
   x = 926,666.20