Finding the Third Proportional to 20,809.13 and 45,510.75

Step by Step Solution

1. Step 1: Write the proportion equation
   20,809.13 : 45,510.75 = 45,510.75 : x
2. Step 2: Convert to fraction form
   20,809.13/45,510.75 = 45,510.75/x
3. Step 3: Cross multiply
   20,809.13x = 45,510.75 × 45,510.75
4. Step 4: Simplify right side
   20,809.13x = 2,071,228,365.56
5. Step 5: Solve for x
   x = 2,071,228,365.56/20,809.13
6. Step 6: Final answer
   x = 99,534.62