Finding the Third Proportional to 20,786.63 and 42,798.38

Step by Step Solution

1. Step 1: Write the proportion equation
   20,786.63 : 42,798.38 = 42,798.38 : x
2. Step 2: Convert to fraction form
   20,786.63/42,798.38 = 42,798.38/x
3. Step 3: Cross multiply
   20,786.63x = 42,798.38 × 42,798.38
4. Step 4: Simplify right side
   20,786.63x = 1,831,700,902.64
5. Step 5: Solve for x
   x = 1,831,700,902.64/20,786.63
6. Step 6: Final answer
   x = 88,119.21