Finding the Third Proportional to 215,493 and 341,055

Step by Step Solution

1. Step 1: Write the proportion equation
   215,493 : 341,055 = 341,055 : x
2. Step 2: Convert to fraction form
   215,493/341,055 = 341,055/x
3. Step 3: Cross multiply
   215,493x = 341,055 × 341,055
4. Step 4: Simplify right side
   215,493x = 116,318,513,025
5. Step 5: Solve for x
   x = 116,318,513,025/215,493
6. Step 6: Final answer
   x = 539,778.61