Finding the Third Proportional to 20,365.31 and 30,678.19

Step by Step Solution

1. Step 1: Write the proportion equation
   20,365.31 : 30,678.19 = 30,678.19 : x
2. Step 2: Convert to fraction form
   20,365.31/30,678.19 = 30,678.19/x
3. Step 3: Cross multiply
   20,365.31x = 30,678.19 × 30,678.19
4. Step 4: Simplify right side
   20,365.31x = 941,151,188.29
5. Step 5: Solve for x
   x = 941,151,188.29/20,365.31
6. Step 6: Final answer
   x = 46,213.44