Finding the Third Proportional to 3,947,130 and 8,503,326

Step by Step Solution

1. Step 1: Write the proportion equation
   3,947,130 : 8,503,326 = 8,503,326 : x
2. Step 2: Convert to fraction form
   3,947,130/8,503,326 = 8,503,326/x
3. Step 3: Cross multiply
   3,947,130x = 8,503,326 × 8,503,326
4. Step 4: Simplify right side
   3,947,130x = 72,306,553,062,276
5. Step 5: Solve for x
   x = 72,306,553,062,276/3,947,130
6. Step 6: Final answer
   x = 18,318,766.56