Finding the Third Proportional to 143,400 and 296,007

Step by Step Solution

1. Step 1: Write the proportion equation
   143,400 : 296,007 = 296,007 : x
2. Step 2: Convert to fraction form
   143,400/296,007 = 296,007/x
3. Step 3: Cross multiply
   143,400x = 296,007 × 296,007
4. Step 4: Simplify right side
   143,400x = 87,620,144,049
5. Step 5: Solve for x
   x = 87,620,144,049/143,400
6. Step 6: Final answer
   x = 611,019.14