Finding the Third Proportional to 50,059.69 and 77,485.78

Step by Step Solution

1. Step 1: Write the proportion equation
   50,059.69 : 77,485.78 = 77,485.78 : x
2. Step 2: Convert to fraction form
   50,059.69/77,485.78 = 77,485.78/x
3. Step 3: Cross multiply
   50,059.69x = 77,485.78 × 77,485.78
4. Step 4: Simplify right side
   50,059.69x = 6,004,046,295.92
5. Step 5: Solve for x
   x = 6,004,046,295.92/50,059.69
6. Step 6: Final answer
   x = 119,937.75