Finding the Third Proportional to 3,557,586 and 7,779,480

Step by Step Solution

1. Step 1: Write the proportion equation
   3,557,586 : 7,779,480 = 7,779,480 : x
2. Step 2: Convert to fraction form
   3,557,586/7,779,480 = 7,779,480/x
3. Step 3: Cross multiply
   3,557,586x = 7,779,480 × 7,779,480
4. Step 4: Simplify right side
   3,557,586x = 60,520,309,070,400
5. Step 5: Solve for x
   x = 60,520,309,070,400/3,557,586
6. Step 6: Final answer
   x = 17,011,622.23