Finding the Third Proportional to 65,874 and 99,390

Step by Step Solution

1. Step 1: Write the proportion equation
   65,874 : 99,390 = 99,390 : x
2. Step 2: Convert to fraction form
   65,874/99,390 = 99,390/x
3. Step 3: Cross multiply
   65,874x = 99,390 × 99,390
4. Step 4: Simplify right side
   65,874x = 9,878,372,100
5. Step 5: Solve for x
   x = 9,878,372,100/65,874
6. Step 6: Final answer
   x = 149,958.59