Finding the Third Proportional to 663,690 and 1,447,930

Step by Step Solution

1. Step 1: Write the proportion equation
   663,690 : 1,447,930 = 1,447,930 : x
2. Step 2: Convert to fraction form
   663,690/1,447,930 = 1,447,930/x
3. Step 3: Cross multiply
   663,690x = 1,447,930 × 1,447,930
4. Step 4: Simplify right side
   663,690x = 2,096,501,284,900
5. Step 5: Solve for x
   x = 2,096,501,284,900/663,690
6. Step 6: Final answer
   x = 3,158,856.22