Finding the Third Proportional to 20,643.75 and 45,398.25

Step by Step Solution

1. Step 1: Write the proportion equation
   20,643.75 : 45,398.25 = 45,398.25 : x
2. Step 2: Convert to fraction form
   20,643.75/45,398.25 = 45,398.25/x
3. Step 3: Cross multiply
   20,643.75x = 45,398.25 × 45,398.25
4. Step 4: Simplify right side
   20,643.75x = 2,061,001,103.06
5. Step 5: Solve for x
   x = 2,061,001,103.06/20,643.75
6. Step 6: Final answer
   x = 99,836.57