Finding the Third Proportional to 211,424.50 and 443,608.50

Step by Step Solution

1. Step 1: Write the proportion equation
   211,424.50 : 443,608.50 = 443,608.50 : x
2. Step 2: Convert to fraction form
   211,424.50/443,608.50 = 443,608.50/x
3. Step 3: Cross multiply
   211,424.50x = 443,608.50 × 443,608.50
4. Step 4: Simplify right side
   211,424.50x = 196,788,501,272.25
5. Step 5: Solve for x
   x = 196,788,501,272.25/211,424.50
6. Step 6: Final answer
   x = 930,774.35