Finding the Third Proportional to 648,660 and 1,419,501

Step by Step Solution

1. Step 1: Write the proportion equation
   648,660 : 1,419,501 = 1,419,501 : x
2. Step 2: Convert to fraction form
   648,660/1,419,501 = 1,419,501/x
3. Step 3: Cross multiply
   648,660x = 1,419,501 × 1,419,501
4. Step 4: Simplify right side
   648,660x = 2,014,983,089,001
5. Step 5: Solve for x
   x = 2,014,983,089,001/648,660
6. Step 6: Final answer
   x = 3,106,377.90