Finding the Third Proportional to 21,005 and 45,458

Step by Step Solution

1. Step 1: Write the proportion equation
   21,005 : 45,458 = 45,458 : x
2. Step 2: Convert to fraction form
   21,005/45,458 = 45,458/x
3. Step 3: Cross multiply
   21,005x = 45,458 × 45,458
4. Step 4: Simplify right side
   21,005x = 2,066,429,764
5. Step 5: Solve for x
   x = 2,066,429,764/21,005
6. Step 6: Final answer
   x = 98,377.99