Finding the Third Proportional to 302,000.50 and 442,850

Step by Step Solution

1. Step 1: Write the proportion equation
   302,000.50 : 442,850 = 442,850 : x
2. Step 2: Convert to fraction form
   302,000.50/442,850 = 442,850/x
3. Step 3: Cross multiply
   302,000.50x = 442,850 × 442,850
4. Step 4: Simplify right side
   302,000.50x = 196,116,122,500
5. Step 5: Solve for x
   x = 196,116,122,500/302,000.50
6. Step 6: Final answer
   x = 649,390.06