Finding the Third Proportional to 58,171.50 and 83,872.69

Step by Step Solution

1. Step 1: Write the proportion equation
   58,171.50 : 83,872.69 = 83,872.69 : x
2. Step 2: Convert to fraction form
   58,171.50/83,872.69 = 83,872.69/x
3. Step 3: Cross multiply
   58,171.50x = 83,872.69 × 83,872.69
4. Step 4: Simplify right side
   58,171.50x = 7,034,627,708.47
5. Step 5: Solve for x
   x = 7,034,627,708.47/58,171.50
6. Step 6: Final answer
   x = 120,929.11