Finding the Third Proportional to 56,922.75 and 123,689.25

Step by Step Solution

1. Step 1: Write the proportion equation
   56,922.75 : 123,689.25 = 123,689.25 : x
2. Step 2: Convert to fraction form
   56,922.75/123,689.25 = 123,689.25/x
3. Step 3: Cross multiply
   56,922.75x = 123,689.25 × 123,689.25
4. Step 4: Simplify right side
   56,922.75x = 15,299,030,565.56
5. Step 5: Solve for x
   x = 15,299,030,565.56/56,922.75
6. Step 6: Final answer
   x = 268,768.30