Finding the Third Proportional to 50,521 and 78,441

Step by Step Solution

1. Step 1: Write the proportion equation
   50,521 : 78,441 = 78,441 : x
2. Step 2: Convert to fraction form
   50,521/78,441 = 78,441/x
3. Step 3: Cross multiply
   50,521x = 78,441 × 78,441
4. Step 4: Simplify right side
   50,521x = 6,152,990,481
5. Step 5: Solve for x
   x = 6,152,990,481/50,521
6. Step 6: Final answer
   x = 121,790.75