Finding the Third Proportional to 20,906 and 32,790

Step by Step Solution

1. Step 1: Write the proportion equation
   20,906 : 32,790 = 32,790 : x
2. Step 2: Convert to fraction form
   20,906/32,790 = 32,790/x
3. Step 3: Cross multiply
   20,906x = 32,790 × 32,790
4. Step 4: Simplify right side
   20,906x = 1,075,184,100
5. Step 5: Solve for x
   x = 1,075,184,100/20,906
6. Step 6: Final answer
   x = 51,429.45