Finding the Third Proportional to 3,940,158 and 8,354,769

Step by Step Solution

1. Step 1: Write the proportion equation
   3,940,158 : 8,354,769 = 8,354,769 : x
2. Step 2: Convert to fraction form
   3,940,158/8,354,769 = 8,354,769/x
3. Step 3: Cross multiply
   3,940,158x = 8,354,769 × 8,354,769
4. Step 4: Simplify right side
   3,940,158x = 69,802,165,043,361
5. Step 5: Solve for x
   x = 69,802,165,043,361/3,940,158
6. Step 6: Final answer
   x = 17,715,575.12