Finding the Third Proportional to 403,865 and 633,600.50

Step by Step Solution

1. Step 1: Write the proportion equation
   403,865 : 633,600.50 = 633,600.50 : x
2. Step 2: Convert to fraction form
   403,865/633,600.50 = 633,600.50/x
3. Step 3: Cross multiply
   403,865x = 633,600.50 × 633,600.50
4. Step 4: Simplify right side
   403,865x = 401,449,593,600.25
5. Step 5: Solve for x
   x = 401,449,593,600.25/403,865
6. Step 6: Final answer
   x = 994,019.27