Finding the Third Proportional to 50,440 and 78,954

Step by Step Solution

1. Step 1: Write the proportion equation
   50,440 : 78,954 = 78,954 : x
2. Step 2: Convert to fraction form
   50,440/78,954 = 78,954/x
3. Step 3: Cross multiply
   50,440x = 78,954 × 78,954
4. Step 4: Simplify right side
   50,440x = 6,233,734,116
5. Step 5: Solve for x
   x = 6,233,734,116/50,440
6. Step 6: Final answer
   x = 123,587.12