Finding the Third Proportional to 578,507 and 1,245,914

Step by Step Solution

1. Step 1: Write the proportion equation
   578,507 : 1,245,914 = 1,245,914 : x
2. Step 2: Convert to fraction form
   578,507/1,245,914 = 1,245,914/x
3. Step 3: Cross multiply
   578,507x = 1,245,914 × 1,245,914
4. Step 4: Simplify right side
   578,507x = 1,552,301,695,396
5. Step 5: Solve for x
   x = 1,552,301,695,396/578,507
6. Step 6: Final answer
   x = 2,683,289.39