Finding the Third Proportional to 305,157 and 443,884.50

Step by Step Solution

1. Step 1: Write the proportion equation
   305,157 : 443,884.50 = 443,884.50 : x
2. Step 2: Convert to fraction form
   305,157/443,884.50 = 443,884.50/x
3. Step 3: Cross multiply
   305,157x = 443,884.50 × 443,884.50
4. Step 4: Simplify right side
   305,157x = 197,033,449,340.25
5. Step 5: Solve for x
   x = 197,033,449,340.25/305,157
6. Step 6: Final answer
   x = 645,678.94