Finding the Third Proportional to 142,503 and 304,916

Step by Step Solution

1. Step 1: Write the proportion equation
   142,503 : 304,916 = 304,916 : x
2. Step 2: Convert to fraction form
   142,503/304,916 = 304,916/x
3. Step 3: Cross multiply
   142,503x = 304,916 × 304,916
4. Step 4: Simplify right side
   142,503x = 92,973,767,056
5. Step 5: Solve for x
   x = 92,973,767,056/142,503
6. Step 6: Final answer
   x = 652,433.75