Finding the Third Proportional to 21,058 and 45,380

Step by Step Solution

1. Step 1: Write the proportion equation
   21,058 : 45,380 = 45,380 : x
2. Step 2: Convert to fraction form
   21,058/45,380 = 45,380/x
3. Step 3: Cross multiply
   21,058x = 45,380 × 45,380
4. Step 4: Simplify right side
   21,058x = 2,059,344,400
5. Step 5: Solve for x
   x = 2,059,344,400/21,058
6. Step 6: Final answer
   x = 97,793.92