Finding the Third Proportional to 65,687 and 141,229

Step by Step Solution

1. Step 1: Write the proportion equation
   65,687 : 141,229 = 141,229 : x
2. Step 2: Convert to fraction form
   65,687/141,229 = 141,229/x
3. Step 3: Cross multiply
   65,687x = 141,229 × 141,229
4. Step 4: Simplify right side
   65,687x = 19,945,630,441
5. Step 5: Solve for x
   x = 19,945,630,441/65,687
6. Step 6: Final answer
   x = 303,646.54