Finding the Third Proportional to 3,946,886 and 8,502,854

Step by Step Solution

1. Step 1: Write the proportion equation
   3,946,886 : 8,502,854 = 8,502,854 : x
2. Step 2: Convert to fraction form
   3,946,886/8,502,854 = 8,502,854/x
3. Step 3: Cross multiply
   3,946,886x = 8,502,854 × 8,502,854
4. Step 4: Simplify right side
   3,946,886x = 72,298,526,145,316
5. Step 5: Solve for x
   x = 72,298,526,145,316/3,946,886
6. Step 6: Final answer
   x = 18,317,865.31