Finding the Third Proportional to 21,739 and 45,813

Step by Step Solution

1. Step 1: Write the proportion equation
   21,739 : 45,813 = 45,813 : x
2. Step 2: Convert to fraction form
   21,739/45,813 = 45,813/x
3. Step 3: Cross multiply
   21,739x = 45,813 × 45,813
4. Step 4: Simplify right side
   21,739x = 2,098,830,969
5. Step 5: Solve for x
   x = 2,098,830,969/21,739
6. Step 6: Final answer
   x = 96,546.80