Finding the Third Proportional to 143,412 and 296,040

Step by Step Solution

1. Step 1: Write the proportion equation
   143,412 : 296,040 = 296,040 : x
2. Step 2: Convert to fraction form
   143,412/296,040 = 296,040/x
3. Step 3: Cross multiply
   143,412x = 296,040 × 296,040
4. Step 4: Simplify right side
   143,412x = 87,639,681,600
5. Step 5: Solve for x
   x = 87,639,681,600/143,412
6. Step 6: Final answer
   x = 611,104.24