Finding the Third Proportional to 63,911 and 85,144

Step by Step Solution

1. Step 1: Write the proportion equation
   63,911 : 85,144 = 85,144 : x
2. Step 2: Convert to fraction form
   63,911/85,144 = 85,144/x
3. Step 3: Cross multiply
   63,911x = 85,144 × 85,144
4. Step 4: Simplify right side
   63,911x = 7,249,500,736
5. Step 5: Solve for x
   x = 7,249,500,736/63,911
6. Step 6: Final answer
   x = 113,431.19