Finding the Third Proportional to 63,280 and 138,016

Step by Step Solution

1. Step 1: Write the proportion equation
   63,280 : 138,016 = 138,016 : x
2. Step 2: Convert to fraction form
   63,280/138,016 = 138,016/x
3. Step 3: Cross multiply
   63,280x = 138,016 × 138,016
4. Step 4: Simplify right side
   63,280x = 19,048,416,256
5. Step 5: Solve for x
   x = 19,048,416,256/63,280
6. Step 6: Final answer
   x = 301,017.96