Finding the Third Proportional to 55,418.44 and 85,986.56

Step by Step Solution

1. Step 1: Write the proportion equation
   55,418.44 : 85,986.56 = 85,986.56 : x
2. Step 2: Convert to fraction form
   55,418.44/85,986.56 = 85,986.56/x
3. Step 3: Cross multiply
   55,418.44x = 85,986.56 × 85,986.56
4. Step 4: Simplify right side
   55,418.44x = 7,393,688,930.57
5. Step 5: Solve for x
   x = 7,393,688,930.57/55,418.44
6. Step 6: Final answer
   x = 133,415.69