Finding the Third Proportional to 57,404 and 86,104

Step by Step Solution

1. Step 1: Write the proportion equation
   57,404 : 86,104 = 86,104 : x
2. Step 2: Convert to fraction form
   57,404/86,104 = 86,104/x
3. Step 3: Cross multiply
   57,404x = 86,104 × 86,104
4. Step 4: Simplify right side
   57,404x = 7,413,898,816
5. Step 5: Solve for x
   x = 7,413,898,816/57,404
6. Step 6: Final answer
   x = 129,153.00