Finding the Third Proportional to 215,028.50 and 341,610.50

Step by Step Solution

1. Step 1: Write the proportion equation
   215,028.50 : 341,610.50 = 341,610.50 : x
2. Step 2: Convert to fraction form
   215,028.50/341,610.50 = 341,610.50/x
3. Step 3: Cross multiply
   215,028.50x = 341,610.50 × 341,610.50
4. Step 4: Simplify right side
   215,028.50x = 116,697,733,710.25
5. Step 5: Solve for x
   x = 116,697,733,710.25/215,028.50
6. Step 6: Final answer
   x = 542,708.22