Finding the Third Proportional to 57,109.50 and 83,716

Step by Step Solution

1. Step 1: Write the proportion equation
   57,109.50 : 83,716 = 83,716 : x
2. Step 2: Convert to fraction form
   57,109.50/83,716 = 83,716/x
3. Step 3: Cross multiply
   57,109.50x = 83,716 × 83,716
4. Step 4: Simplify right side
   57,109.50x = 7,008,368,656
5. Step 5: Solve for x
   x = 7,008,368,656/57,109.50
6. Step 6: Final answer
   x = 122,718.09