Finding the Third Proportional to 20,579.06 and 30,780.56

Step by Step Solution

1. Step 1: Write the proportion equation
   20,579.06 : 30,780.56 = 30,780.56 : x
2. Step 2: Convert to fraction form
   20,579.06/30,780.56 = 30,780.56/x
3. Step 3: Cross multiply
   20,579.06x = 30,780.56 × 30,780.56
4. Step 4: Simplify right side
   20,579.06x = 947,443,027.82
5. Step 5: Solve for x
   x = 947,443,027.82/20,579.06
6. Step 6: Final answer
   x = 46,039.17