Finding the Third Proportional to 69,936.50 and 105,485

Step by Step Solution

1. Step 1: Write the proportion equation
   69,936.50 : 105,485 = 105,485 : x
2. Step 2: Convert to fraction form
   69,936.50/105,485 = 105,485/x
3. Step 3: Cross multiply
   69,936.50x = 105,485 × 105,485
4. Step 4: Simplify right side
   69,936.50x = 11,127,085,225
5. Step 5: Solve for x
   x = 11,127,085,225/69,936.50
6. Step 6: Final answer
   x = 159,102.69