Finding the Third Proportional to 67,528 and 142,328

Step by Step Solution

1. Step 1: Write the proportion equation
   67,528 : 142,328 = 142,328 : x
2. Step 2: Convert to fraction form
   67,528/142,328 = 142,328/x
3. Step 3: Cross multiply
   67,528x = 142,328 × 142,328
4. Step 4: Simplify right side
   67,528x = 20,257,259,584
5. Step 5: Solve for x
   x = 20,257,259,584/67,528
6. Step 6: Final answer
   x = 299,983.11