Finding the Third Proportional to 298,593 and 649,672.50

Step by Step Solution

1. Step 1: Write the proportion equation
   298,593 : 649,672.50 = 649,672.50 : x
2. Step 2: Convert to fraction form
   298,593/649,672.50 = 649,672.50/x
3. Step 3: Cross multiply
   298,593x = 649,672.50 × 649,672.50
4. Step 4: Simplify right side
   298,593x = 422,074,357,256.25
5. Step 5: Solve for x
   x = 422,074,357,256.25/298,593
6. Step 6: Final answer
   x = 1,413,544.05