Finding the Third Proportional to 10,742.63 and 21,629.53

Step by Step Solution

1. Step 1: Write the proportion equation
   10,742.63 : 21,629.53 = 21,629.53 : x
2. Step 2: Convert to fraction form
   10,742.63/21,629.53 = 21,629.53/x
3. Step 3: Cross multiply
   10,742.63x = 21,629.53 × 21,629.53
4. Step 4: Simplify right side
   10,742.63x = 467,836,622.09
5. Step 5: Solve for x
   x = 467,836,622.09/10,742.63
6. Step 6: Final answer
   x = 43,549.56