Finding the Third Proportional to 65,910 and 142,188

Step by Step Solution

1. Step 1: Write the proportion equation
   65,910 : 142,188 = 142,188 : x
2. Step 2: Convert to fraction form
   65,910/142,188 = 142,188/x
3. Step 3: Cross multiply
   65,910x = 142,188 × 142,188
4. Step 4: Simplify right side
   65,910x = 20,217,427,344
5. Step 5: Solve for x
   x = 20,217,427,344/65,910
6. Step 6: Final answer
   x = 306,742.94