Finding the Third Proportional to 57,109.75 and 83,716.13

Step by Step Solution

1. Step 1: Write the proportion equation
   57,109.75 : 83,716.13 = 83,716.13 : x
2. Step 2: Convert to fraction form
   57,109.75/83,716.13 = 83,716.13/x
3. Step 3: Cross multiply
   57,109.75x = 83,716.13 × 83,716.13
4. Step 4: Simplify right side
   57,109.75x = 7,008,389,585.02
5. Step 5: Solve for x
   x = 7,008,389,585.02/57,109.75
6. Step 6: Final answer
   x = 122,717.92