Finding the Third Proportional to 59,478 and 85,491

Step by Step Solution

1. Step 1: Write the proportion equation
   59,478 : 85,491 = 85,491 : x
2. Step 2: Convert to fraction form
   59,478/85,491 = 85,491/x
3. Step 3: Cross multiply
   59,478x = 85,491 × 85,491
4. Step 4: Simplify right side
   59,478x = 7,308,711,081
5. Step 5: Solve for x
   x = 7,308,711,081/59,478
6. Step 6: Final answer
   x = 122,880.92