Finding the Third Proportional to 55,880 and 85,764

Step by Step Solution

1. Step 1: Write the proportion equation
   55,880 : 85,764 = 85,764 : x
2. Step 2: Convert to fraction form
   55,880/85,764 = 85,764/x
3. Step 3: Cross multiply
   55,880x = 85,764 × 85,764
4. Step 4: Simplify right side
   55,880x = 7,355,463,696
5. Step 5: Solve for x
   x = 7,355,463,696/55,880
6. Step 6: Final answer
   x = 131,629.63