Finding the Third Proportional to 122,086.50 and 253,530

Step by Step Solution

1. Step 1: Write the proportion equation
   122,086.50 : 253,530 = 253,530 : x
2. Step 2: Convert to fraction form
   122,086.50/253,530 = 253,530/x
3. Step 3: Cross multiply
   122,086.50x = 253,530 × 253,530
4. Step 4: Simplify right side
   122,086.50x = 64,277,460,900
5. Step 5: Solve for x
   x = 64,277,460,900/122,086.50
6. Step 6: Final answer
   x = 526,491.14