Finding the Third Proportional to 664,920 and 1,462,680

Step by Step Solution

1. Step 1: Write the proportion equation
   664,920 : 1,462,680 = 1,462,680 : x
2. Step 2: Convert to fraction form
   664,920/1,462,680 = 1,462,680/x
3. Step 3: Cross multiply
   664,920x = 1,462,680 × 1,462,680
4. Step 4: Simplify right side
   664,920x = 2,139,432,782,400
5. Step 5: Solve for x
   x = 2,139,432,782,400/664,920
6. Step 6: Final answer
   x = 3,217,579.23