Finding the Third Proportional to 142,492 and 305,946

Step by Step Solution

1. Step 1: Write the proportion equation
   142,492 : 305,946 = 305,946 : x
2. Step 2: Convert to fraction form
   142,492/305,946 = 305,946/x
3. Step 3: Cross multiply
   142,492x = 305,946 × 305,946
4. Step 4: Simplify right side
   142,492x = 93,602,954,916
5. Step 5: Solve for x
   x = 93,602,954,916/142,492
6. Step 6: Final answer
   x = 656,899.72