Finding the Third Proportional to 58,126 and 123,242

Step by Step Solution

1. Step 1: Write the proportion equation
   58,126 : 123,242 = 123,242 : x
2. Step 2: Convert to fraction form
   58,126/123,242 = 123,242/x
3. Step 3: Cross multiply
   58,126x = 123,242 × 123,242
4. Step 4: Simplify right side
   58,126x = 15,188,590,564
5. Step 5: Solve for x
   x = 15,188,590,564/58,126
6. Step 6: Final answer
   x = 261,304.59