Finding the Third Proportional to 3,684,530 and 8,685,341

Step by Step Solution

1. Step 1: Write the proportion equation
   3,684,530 : 8,685,341 = 8,685,341 : x
2. Step 2: Convert to fraction form
   3,684,530/8,685,341 = 8,685,341/x
3. Step 3: Cross multiply
   3,684,530x = 8,685,341 × 8,685,341
4. Step 4: Simplify right side
   3,684,530x = 75,435,148,286,281
5. Step 5: Solve for x
   x = 75,435,148,286,281/3,684,530
6. Step 6: Final answer
   x = 20,473,479.19