Finding the Third Proportional to 302,355 and 633,870

Step by Step Solution

1. Step 1: Write the proportion equation
   302,355 : 633,870 = 633,870 : x
2. Step 2: Convert to fraction form
   302,355/633,870 = 633,870/x
3. Step 3: Cross multiply
   302,355x = 633,870 × 633,870
4. Step 4: Simplify right side
   302,355x = 401,791,176,900
5. Step 5: Solve for x
   x = 401,791,176,900/302,355
6. Step 6: Final answer
   x = 1,328,872.28