Finding the Third Proportional to 56,830 and 123,634

Step by Step Solution

1. Step 1: Write the proportion equation
   56,830 : 123,634 = 123,634 : x
2. Step 2: Convert to fraction form
   56,830/123,634 = 123,634/x
3. Step 3: Cross multiply
   56,830x = 123,634 × 123,634
4. Step 4: Simplify right side
   56,830x = 15,285,365,956
5. Step 5: Solve for x
   x = 15,285,365,956/56,830
6. Step 6: Final answer
   x = 268,966.50