Finding the Third Proportional to 3,994,578 and 8,549,028

Step by Step Solution

1. Step 1: Write the proportion equation
   3,994,578 : 8,549,028 = 8,549,028 : x
2. Step 2: Convert to fraction form
   3,994,578/8,549,028 = 8,549,028/x
3. Step 3: Cross multiply
   3,994,578x = 8,549,028 × 8,549,028
4. Step 4: Simplify right side
   3,994,578x = 73,085,879,744,784
5. Step 5: Solve for x
   x = 73,085,879,744,784/3,994,578
6. Step 6: Final answer
   x = 18,296,270.53