Finding the Third Proportional to 20,632 and 45,128

Step by Step Solution

1. Step 1: Write the proportion equation
   20,632 : 45,128 = 45,128 : x
2. Step 2: Convert to fraction form
   20,632/45,128 = 45,128/x
3. Step 3: Cross multiply
   20,632x = 45,128 × 45,128
4. Step 4: Simplify right side
   20,632x = 2,036,536,384
5. Step 5: Solve for x
   x = 2,036,536,384/20,632
6. Step 6: Final answer
   x = 98,707.66