Finding the Third Proportional to 89,847 and 139,149

Step by Step Solution

1. Step 1: Write the proportion equation
   89,847 : 139,149 = 139,149 : x
2. Step 2: Convert to fraction form
   89,847/139,149 = 139,149/x
3. Step 3: Cross multiply
   89,847x = 139,149 × 139,149
4. Step 4: Simplify right side
   89,847x = 19,362,444,201
5. Step 5: Solve for x
   x = 19,362,444,201/89,847
6. Step 6: Final answer
   x = 215,504.63