Finding the Third Proportional to 60,438 and 142,706

Step by Step Solution

1. Step 1: Write the proportion equation
   60,438 : 142,706 = 142,706 : x
2. Step 2: Convert to fraction form
   60,438/142,706 = 142,706/x
3. Step 3: Cross multiply
   60,438x = 142,706 × 142,706
4. Step 4: Simplify right side
   60,438x = 20,365,002,436
5. Step 5: Solve for x
   x = 20,365,002,436/60,438
6. Step 6: Final answer
   x = 336,956.92