Finding the Third Proportional to 408,271.50 and 633,720

Step by Step Solution

1. Step 1: Write the proportion equation
   408,271.50 : 633,720 = 633,720 : x
2. Step 2: Convert to fraction form
   408,271.50/633,720 = 633,720/x
3. Step 3: Cross multiply
   408,271.50x = 633,720 × 633,720
4. Step 4: Simplify right side
   408,271.50x = 401,601,038,400
5. Step 5: Solve for x
   x = 401,601,038,400/408,271.50
6. Step 6: Final answer
   x = 983,661.70