Finding the Third Proportional to 284,921 and 426,104.50

Step by Step Solution

1. Step 1: Write the proportion equation
   284,921 : 426,104.50 = 426,104.50 : x
2. Step 2: Convert to fraction form
   284,921/426,104.50 = 426,104.50/x
3. Step 3: Cross multiply
   284,921x = 426,104.50 × 426,104.50
4. Step 4: Simplify right side
   284,921x = 181,565,044,920.25
5. Step 5: Solve for x
   x = 181,565,044,920.25/284,921
6. Step 6: Final answer
   x = 637,246.97