Finding the Third Proportional to 21,681 and 45,063

Step by Step Solution

1. Step 1: Write the proportion equation
   21,681 : 45,063 = 45,063 : x
2. Step 2: Convert to fraction form
   21,681/45,063 = 45,063/x
3. Step 3: Cross multiply
   21,681x = 45,063 × 45,063
4. Step 4: Simplify right side
   21,681x = 2,030,673,969
5. Step 5: Solve for x
   x = 2,030,673,969/21,681
6. Step 6: Final answer
   x = 93,661.45