Finding the Third Proportional to 56,720 and 123,652

Step by Step Solution

1. Step 1: Write the proportion equation
   56,720 : 123,652 = 123,652 : x
2. Step 2: Convert to fraction form
   56,720/123,652 = 123,652/x
3. Step 3: Cross multiply
   56,720x = 123,652 × 123,652
4. Step 4: Simplify right side
   56,720x = 15,289,817,104
5. Step 5: Solve for x
   x = 15,289,817,104/56,720
6. Step 6: Final answer
   x = 269,566.59