Finding the Third Proportional to 20,106.56 and 30,121.88

Step by Step Solution

1. Step 1: Write the proportion equation
   20,106.56 : 30,121.88 = 30,121.88 : x
2. Step 2: Convert to fraction form
   20,106.56/30,121.88 = 30,121.88/x
3. Step 3: Cross multiply
   20,106.56x = 30,121.88 × 30,121.88
4. Step 4: Simplify right side
   20,106.56x = 907,327,353.52
5. Step 5: Solve for x
   x = 907,327,353.52/20,106.56
6. Step 6: Final answer
   x = 45,125.93