Finding the Third Proportional to 299,285 and 665,003.50

Step by Step Solution

1. Step 1: Write the proportion equation
   299,285 : 665,003.50 = 665,003.50 : x
2. Step 2: Convert to fraction form
   299,285/665,003.50 = 665,003.50/x
3. Step 3: Cross multiply
   299,285x = 665,003.50 × 665,003.50
4. Step 4: Simplify right side
   299,285x = 442,229,655,012.25
5. Step 5: Solve for x
   x = 442,229,655,012.25/299,285
6. Step 6: Final answer
   x = 1,477,620.51