Finding the Third Proportional to 20,810.81 and 45,156.38

Step by Step Solution

1. Step 1: Write the proportion equation
   20,810.81 : 45,156.38 = 45,156.38 : x
2. Step 2: Convert to fraction form
   20,810.81/45,156.38 = 45,156.38/x
3. Step 3: Cross multiply
   20,810.81x = 45,156.38 × 45,156.38
4. Step 4: Simplify right side
   20,810.81x = 2,039,098,203.14
5. Step 5: Solve for x
   x = 2,039,098,203.14/20,810.81
6. Step 6: Final answer
   x = 97,982.63