Finding the Third Proportional to 658,378 and 1,416,638

Step by Step Solution

1. Step 1: Write the proportion equation
   658,378 : 1,416,638 = 1,416,638 : x
2. Step 2: Convert to fraction form
   658,378/1,416,638 = 1,416,638/x
3. Step 3: Cross multiply
   658,378x = 1,416,638 × 1,416,638
4. Step 4: Simplify right side
   658,378x = 2,006,863,223,044
5. Step 5: Solve for x
   x = 2,006,863,223,044/658,378
6. Step 6: Final answer
   x = 3,048,193.02