Finding the Third Proportional to 403,618.50 and 624,924

Step by Step Solution

1. Step 1: Write the proportion equation
   403,618.50 : 624,924 = 624,924 : x
2. Step 2: Convert to fraction form
   403,618.50/624,924 = 624,924/x
3. Step 3: Cross multiply
   403,618.50x = 624,924 × 624,924
4. Step 4: Simplify right side
   403,618.50x = 390,530,005,776
5. Step 5: Solve for x
   x = 390,530,005,776/403,618.50
6. Step 6: Final answer
   x = 967,572.12