Finding the Third Proportional to 21,290 and 45,476

Step by Step Solution

1. Step 1: Write the proportion equation
   21,290 : 45,476 = 45,476 : x
2. Step 2: Convert to fraction form
   21,290/45,476 = 45,476/x
3. Step 3: Cross multiply
   21,290x = 45,476 × 45,476
4. Step 4: Simplify right side
   21,290x = 2,068,066,576
5. Step 5: Solve for x
   x = 2,068,066,576/21,290
6. Step 6: Final answer
   x = 97,137.93