Finding the Third Proportional to 3,836,514 and 8,403,972

Step by Step Solution

1. Step 1: Write the proportion equation
   3,836,514 : 8,403,972 = 8,403,972 : x
2. Step 2: Convert to fraction form
   3,836,514/8,403,972 = 8,403,972/x
3. Step 3: Cross multiply
   3,836,514x = 8,403,972 × 8,403,972
4. Step 4: Simplify right side
   3,836,514x = 70,626,745,376,784
5. Step 5: Solve for x
   x = 70,626,745,376,784/3,836,514
6. Step 6: Final answer
   x = 18,409,093.61