Finding the Third Proportional to 56,087.63 and 123,072.75

Step by Step Solution

1. Step 1: Write the proportion equation
   56,087.63 : 123,072.75 = 123,072.75 : x
2. Step 2: Convert to fraction form
   56,087.63/123,072.75 = 123,072.75/x
3. Step 3: Cross multiply
   56,087.63x = 123,072.75 × 123,072.75
4. Step 4: Simplify right side
   56,087.63x = 15,146,901,792.56
5. Step 5: Solve for x
   x = 15,146,901,792.56/56,087.63
6. Step 6: Final answer
   x = 270,057.82