Finding the Third Proportional to 59,328 and 90,756

Step by Step Solution

1. Step 1: Write the proportion equation
   59,328 : 90,756 = 90,756 : x
2. Step 2: Convert to fraction form
   59,328/90,756 = 90,756/x
3. Step 3: Cross multiply
   59,328x = 90,756 × 90,756
4. Step 4: Simplify right side
   59,328x = 8,236,651,536
5. Step 5: Solve for x
   x = 8,236,651,536/59,328
6. Step 6: Final answer
   x = 138,832.45