Finding the Third Proportional to 65,692 and 142,360

Step by Step Solution

1. Step 1: Write the proportion equation
   65,692 : 142,360 = 142,360 : x
2. Step 2: Convert to fraction form
   65,692/142,360 = 142,360/x
3. Step 3: Cross multiply
   65,692x = 142,360 × 142,360
4. Step 4: Simplify right side
   65,692x = 20,266,369,600
5. Step 5: Solve for x
   x = 20,266,369,600/65,692
6. Step 6: Final answer
   x = 308,505.90