Finding the Third Proportional to 618,212 and 1,354,648

Step by Step Solution

1. Step 1: Write the proportion equation
   618,212 : 1,354,648 = 1,354,648 : x
2. Step 2: Convert to fraction form
   618,212/1,354,648 = 1,354,648/x
3. Step 3: Cross multiply
   618,212x = 1,354,648 × 1,354,648
4. Step 4: Simplify right side
   618,212x = 1,835,071,203,904
5. Step 5: Solve for x
   x = 1,835,071,203,904/618,212
6. Step 6: Final answer
   x = 2,968,352.61