Finding the Third Proportional to 202,539 and 443,197.50

Step by Step Solution

1. Step 1: Write the proportion equation
   202,539 : 443,197.50 = 443,197.50 : x
2. Step 2: Convert to fraction form
   202,539/443,197.50 = 443,197.50/x
3. Step 3: Cross multiply
   202,539x = 443,197.50 × 443,197.50
4. Step 4: Simplify right side
   202,539x = 196,424,024,006.25
5. Step 5: Solve for x
   x = 196,424,024,006.25/202,539
6. Step 6: Final answer
   x = 969,808.40