Finding the Third Proportional to 284,949 and 423,031.50

Step by Step Solution

1. Step 1: Write the proportion equation
   284,949 : 423,031.50 = 423,031.50 : x
2. Step 2: Convert to fraction form
   284,949/423,031.50 = 423,031.50/x
3. Step 3: Cross multiply
   284,949x = 423,031.50 × 423,031.50
4. Step 4: Simplify right side
   284,949x = 178,955,649,992.25
5. Step 5: Solve for x
   x = 178,955,649,992.25/284,949
6. Step 6: Final answer
   x = 628,026.95