Finding the Third Proportional to 122,904 and 250,330.50

Step by Step Solution

1. Step 1: Write the proportion equation
   122,904 : 250,330.50 = 250,330.50 : x
2. Step 2: Convert to fraction form
   122,904/250,330.50 = 250,330.50/x
3. Step 3: Cross multiply
   122,904x = 250,330.50 × 250,330.50
4. Step 4: Simplify right side
   122,904x = 62,665,359,230.25
5. Step 5: Solve for x
   x = 62,665,359,230.25/122,904
6. Step 6: Final answer
   x = 509,872.41