Finding the Third Proportional to 65,138 and 141,938

Step by Step Solution

1. Step 1: Write the proportion equation
   65,138 : 141,938 = 141,938 : x
2. Step 2: Convert to fraction form
   65,138/141,938 = 141,938/x
3. Step 3: Cross multiply
   65,138x = 141,938 × 141,938
4. Step 4: Simplify right side
   65,138x = 20,146,395,844
5. Step 5: Solve for x
   x = 20,146,395,844/65,138
6. Step 6: Final answer
   x = 309,287.91