Finding the Third Proportional to 51,128.72 and 104,735.53

Step by Step Solution

1. Step 1: Write the proportion equation
   51,128.72 : 104,735.53 = 104,735.53 : x
2. Step 2: Convert to fraction form
   51,128.72/104,735.53 = 104,735.53/x
3. Step 3: Cross multiply
   51,128.72x = 104,735.53 × 104,735.53
4. Step 4: Simplify right side
   51,128.72x = 10,969,531,506.22
5. Step 5: Solve for x
   x = 10,969,531,506.22/51,128.72
6. Step 6: Final answer
   x = 214,547.36