Finding the Third Proportional to 50,982 and 78,747

Step by Step Solution

1. Step 1: Write the proportion equation
   50,982 : 78,747 = 78,747 : x
2. Step 2: Convert to fraction form
   50,982/78,747 = 78,747/x
3. Step 3: Cross multiply
   50,982x = 78,747 × 78,747
4. Step 4: Simplify right side
   50,982x = 6,201,090,009
5. Step 5: Solve for x
   x = 6,201,090,009/50,982
6. Step 6: Final answer
   x = 121,632.93