Finding the Third Proportional to 31,458 and 45,889

Step by Step Solution

1. Step 1: Write the proportion equation
   31,458 : 45,889 = 45,889 : x
2. Step 2: Convert to fraction form
   31,458/45,889 = 45,889/x
3. Step 3: Cross multiply
   31,458x = 45,889 × 45,889
4. Step 4: Simplify right side
   31,458x = 2,105,800,321
5. Step 5: Solve for x
   x = 2,105,800,321/31,458
6. Step 6: Final answer
   x = 66,940.06