Finding the Third Proportional to 397,530 and 633,172.50

Step by Step Solution

1. Step 1: Write the proportion equation
   397,530 : 633,172.50 = 633,172.50 : x
2. Step 2: Convert to fraction form
   397,530/633,172.50 = 633,172.50/x
3. Step 3: Cross multiply
   397,530x = 633,172.50 × 633,172.50
4. Step 4: Simplify right side
   397,530x = 400,907,414,756.25
5. Step 5: Solve for x
   x = 400,907,414,756.25/397,530
6. Step 6: Final answer
   x = 1,008,496.00