Finding the Third Proportional to 51,360 and 78,834

Step by Step Solution

1. Step 1: Write the proportion equation
   51,360 : 78,834 = 78,834 : x
2. Step 2: Convert to fraction form
   51,360/78,834 = 78,834/x
3. Step 3: Cross multiply
   51,360x = 78,834 × 78,834
4. Step 4: Simplify right side
   51,360x = 6,214,799,556
5. Step 5: Solve for x
   x = 6,214,799,556/51,360
6. Step 6: Final answer
   x = 121,004.66