Finding the Third Proportional to 20,828.81 and 45,812.25

Step by Step Solution

1. Step 1: Write the proportion equation
   20,828.81 : 45,812.25 = 45,812.25 : x
2. Step 2: Convert to fraction form
   20,828.81/45,812.25 = 45,812.25/x
3. Step 3: Cross multiply
   20,828.81x = 45,812.25 × 45,812.25
4. Step 4: Simplify right side
   20,828.81x = 2,098,762,250.06
5. Step 5: Solve for x
   x = 2,098,762,250.06/20,828.81
6. Step 6: Final answer
   x = 100,762.45