Finding the Third Proportional to 91,161 and 139,935

Step by Step Solution

1. Step 1: Write the proportion equation
   91,161 : 139,935 = 139,935 : x
2. Step 2: Convert to fraction form
   91,161/139,935 = 139,935/x
3. Step 3: Cross multiply
   91,161x = 139,935 × 139,935
4. Step 4: Simplify right side
   91,161x = 19,581,804,225
5. Step 5: Solve for x
   x = 19,581,804,225/91,161
6. Step 6: Final answer
   x = 214,804.62