Finding the Third Proportional to 3,894,136 and 8,522,360

Step by Step Solution

1. Step 1: Write the proportion equation
   3,894,136 : 8,522,360 = 8,522,360 : x
2. Step 2: Convert to fraction form
   3,894,136/8,522,360 = 8,522,360/x
3. Step 3: Cross multiply
   3,894,136x = 8,522,360 × 8,522,360
4. Step 4: Simplify right side
   3,894,136x = 72,630,619,969,600
5. Step 5: Solve for x
   x = 72,630,619,969,600/3,894,136
6. Step 6: Final answer
   x = 18,651,279.76