Finding the Third Proportional to 215,488.50 and 341,047.50

Step by Step Solution

1. Step 1: Write the proportion equation
   215,488.50 : 341,047.50 = 341,047.50 : x
2. Step 2: Convert to fraction form
   215,488.50/341,047.50 = 341,047.50/x
3. Step 3: Cross multiply
   215,488.50x = 341,047.50 × 341,047.50
4. Step 4: Simplify right side
   215,488.50x = 116,313,397,256.25
5. Step 5: Solve for x
   x = 116,313,397,256.25/215,488.50
6. Step 6: Final answer
   x = 539,766.15