Finding the Third Proportional to 65,040 and 141,869

Step by Step Solution

1. Step 1: Write the proportion equation
   65,040 : 141,869 = 141,869 : x
2. Step 2: Convert to fraction form
   65,040/141,869 = 141,869/x
3. Step 3: Cross multiply
   65,040x = 141,869 × 141,869
4. Step 4: Simplify right side
   65,040x = 20,126,813,161
5. Step 5: Solve for x
   x = 20,126,813,161/65,040
6. Step 6: Final answer
   x = 309,452.85