Finding the Third Proportional to 55,819.69 and 83,856.09

Step by Step Solution

1. Step 1: Write the proportion equation
   55,819.69 : 83,856.09 = 83,856.09 : x
2. Step 2: Convert to fraction form
   55,819.69/83,856.09 = 83,856.09/x
3. Step 3: Cross multiply
   55,819.69x = 83,856.09 × 83,856.09
4. Step 4: Simplify right side
   55,819.69x = 7,031,844,459.01
5. Step 5: Solve for x
   x = 7,031,844,459.01/55,819.69
6. Step 6: Final answer
   x = 125,974.27