Finding the Third Proportional to 19,432.31 and 30,900.75

Step by Step Solution

1. Step 1: Write the proportion equation
   19,432.31 : 30,900.75 = 30,900.75 : x
2. Step 2: Convert to fraction form
   19,432.31/30,900.75 = 30,900.75/x
3. Step 3: Cross multiply
   19,432.31x = 30,900.75 × 30,900.75
4. Step 4: Simplify right side
   19,432.31x = 954,856,350.56
5. Step 5: Solve for x
   x = 954,856,350.56/19,432.31
6. Step 6: Final answer
   x = 49,137.56