Finding the Third Proportional to 43,576 and 69,040

Step by Step Solution

1. Step 1: Write the proportion equation
   43,576 : 69,040 = 69,040 : x
2. Step 2: Convert to fraction form
   43,576/69,040 = 69,040/x
3. Step 3: Cross multiply
   43,576x = 69,040 × 69,040
4. Step 4: Simplify right side
   43,576x = 4,766,521,600
5. Step 5: Solve for x
   x = 4,766,521,600/43,576
6. Step 6: Final answer
   x = 109,384.10