Finding the Third Proportional to 34,458 and 51,039

Step by Step Solution

1. Step 1: Write the proportion equation
   34,458 : 51,039 = 51,039 : x
2. Step 2: Convert to fraction form
   34,458/51,039 = 51,039/x
3. Step 3: Cross multiply
   34,458x = 51,039 × 51,039
4. Step 4: Simplify right side
   34,458x = 2,604,979,521
5. Step 5: Solve for x
   x = 2,604,979,521/34,458
6. Step 6: Final answer
   x = 75,598.69