Finding the Third Proportional to 35,457.75 and 54,128.25

Step by Step Solution

1. Step 1: Write the proportion equation
   35,457.75 : 54,128.25 = 54,128.25 : x
2. Step 2: Convert to fraction form
   35,457.75/54,128.25 = 54,128.25/x
3. Step 3: Cross multiply
   35,457.75x = 54,128.25 × 54,128.25
4. Step 4: Simplify right side
   35,457.75x = 2,929,867,448.06
5. Step 5: Solve for x
   x = 2,929,867,448.06/35,457.75
6. Step 6: Final answer
   x = 82,629.82