Finding the Third Proportional to 67,417 and 90,756

Step by Step Solution

1. Step 1: Write the proportion equation
   67,417 : 90,756 = 90,756 : x
2. Step 2: Convert to fraction form
   67,417/90,756 = 90,756/x
3. Step 3: Cross multiply
   67,417x = 90,756 × 90,756
4. Step 4: Simplify right side
   67,417x = 8,236,651,536
5. Step 5: Solve for x
   x = 8,236,651,536/67,417
6. Step 6: Final answer
   x = 122,174.70