Finding the Third Proportional to 403,288.50 and 619,032

Step by Step Solution

1. Step 1: Write the proportion equation
   403,288.50 : 619,032 = 619,032 : x
2. Step 2: Convert to fraction form
   403,288.50/619,032 = 619,032/x
3. Step 3: Cross multiply
   403,288.50x = 619,032 × 619,032
4. Step 4: Simplify right side
   403,288.50x = 383,200,617,024
5. Step 5: Solve for x
   x = 383,200,617,024/403,288.50
6. Step 6: Final answer
   x = 950,189.79