Finding the Third Proportional to 299,133 and 648,202.50

Step by Step Solution

1. Step 1: Write the proportion equation
   299,133 : 648,202.50 = 648,202.50 : x
2. Step 2: Convert to fraction form
   299,133/648,202.50 = 648,202.50/x
3. Step 3: Cross multiply
   299,133x = 648,202.50 × 648,202.50
4. Step 4: Simplify right side
   299,133x = 420,166,481,006.25
5. Step 5: Solve for x
   x = 420,166,481,006.25/299,133
6. Step 6: Final answer
   x = 1,404,614.27