Finding the Third Proportional to 57,979.13 and 123,066

Step by Step Solution

1. Step 1: Write the proportion equation
   57,979.13 : 123,066 = 123,066 : x
2. Step 2: Convert to fraction form
   57,979.13/123,066 = 123,066/x
3. Step 3: Cross multiply
   57,979.13x = 123,066 × 123,066
4. Step 4: Simplify right side
   57,979.13x = 15,145,240,356
5. Step 5: Solve for x
   x = 15,145,240,356/57,979.13
6. Step 6: Final answer
   x = 261,218.85