Finding the Third Proportional to 199,557 and 443,407.50

Step by Step Solution

1. Step 1: Write the proportion equation
   199,557 : 443,407.50 = 443,407.50 : x
2. Step 2: Convert to fraction form
   199,557/443,407.50 = 443,407.50/x
3. Step 3: Cross multiply
   199,557x = 443,407.50 × 443,407.50
4. Step 4: Simplify right side
   199,557x = 196,610,211,056.25
5. Step 5: Solve for x
   x = 196,610,211,056.25/199,557
6. Step 6: Final answer
   x = 985,233.35