Finding the Third Proportional to 63,956 and 139,984

Step by Step Solution

1. Step 1: Write the proportion equation
   63,956 : 139,984 = 139,984 : x
2. Step 2: Convert to fraction form
   63,956/139,984 = 139,984/x
3. Step 3: Cross multiply
   63,956x = 139,984 × 139,984
4. Step 4: Simplify right side
   63,956x = 19,595,520,256
5. Step 5: Solve for x
   x = 19,595,520,256/63,956
6. Step 6: Final answer
   x = 306,390.65