Finding the Third Proportional to 59,479 and 87,576

Step by Step Solution

1. Step 1: Write the proportion equation
   59,479 : 87,576 = 87,576 : x
2. Step 2: Convert to fraction form
   59,479/87,576 = 87,576/x
3. Step 3: Cross multiply
   59,479x = 87,576 × 87,576
4. Step 4: Simplify right side
   59,479x = 7,669,555,776
5. Step 5: Solve for x
   x = 7,669,555,776/59,479
6. Step 6: Final answer
   x = 128,945.61