Finding the Third Proportional to 86,905 and 123,963

Step by Step Solution

1. Step 1: Write the proportion equation
   86,905 : 123,963 = 123,963 : x
2. Step 2: Convert to fraction form
   86,905/123,963 = 123,963/x
3. Step 3: Cross multiply
   86,905x = 123,963 × 123,963
4. Step 4: Simplify right side
   86,905x = 15,366,825,369
5. Step 5: Solve for x
   x = 15,366,825,369/86,905
6. Step 6: Final answer
   x = 176,823.26