Finding the Third Proportional to 65,988 and 139,401

Step by Step Solution

1. Step 1: Write the proportion equation
   65,988 : 139,401 = 139,401 : x
2. Step 2: Convert to fraction form
   65,988/139,401 = 139,401/x
3. Step 3: Cross multiply
   65,988x = 139,401 × 139,401
4. Step 4: Simplify right side
   65,988x = 19,432,638,801
5. Step 5: Solve for x
   x = 19,432,638,801/65,988
6. Step 6: Final answer
   x = 294,487.46