Finding the Third Proportional to 86,591.53 and 123,823.69

Step by Step Solution

1. Step 1: Write the proportion equation
   86,591.53 : 123,823.69 = 123,823.69 : x
2. Step 2: Convert to fraction form
   86,591.53/123,823.69 = 123,823.69/x
3. Step 3: Cross multiply
   86,591.53x = 123,823.69 × 123,823.69
4. Step 4: Simplify right side
   86,591.53x = 15,332,305,586.10
5. Step 5: Solve for x
   x = 15,332,305,586.10/86,591.53
6. Step 6: Final answer
   x = 177,064.72