Finding the Third Proportional to 42,296 and 66,956

Step by Step Solution

1. Step 1: Write the proportion equation
   42,296 : 66,956 = 66,956 : x
2. Step 2: Convert to fraction form
   42,296/66,956 = 66,956/x
3. Step 3: Cross multiply
   42,296x = 66,956 × 66,956
4. Step 4: Simplify right side
   42,296x = 4,483,105,936
5. Step 5: Solve for x
   x = 4,483,105,936/42,296
6. Step 6: Final answer
   x = 105,993.61