Finding the Third Proportional to 56,930 and 123,706

Step by Step Solution

1. Step 1: Write the proportion equation
   56,930 : 123,706 = 123,706 : x
2. Step 2: Convert to fraction form
   56,930/123,706 = 123,706/x
3. Step 3: Cross multiply
   56,930x = 123,706 × 123,706
4. Step 4: Simplify right side
   56,930x = 15,303,174,436
5. Step 5: Solve for x
   x = 15,303,174,436/56,930
6. Step 6: Final answer
   x = 268,806.86