Finding the Third Proportional to 3,947,790 and 8,483,005.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,947,790 : 8,483,005.50 = 8,483,005.50 : x
2. Step 2: Convert to fraction form
   3,947,790/8,483,005.50 = 8,483,005.50/x
3. Step 3: Cross multiply
   3,947,790x = 8,483,005.50 × 8,483,005.50
4. Step 4: Simplify right side
   3,947,790x = 71,961,382,313,030.25
5. Step 5: Solve for x
   x = 71,961,382,313,030.25/3,947,790
6. Step 6: Final answer
   x = 18,228,270.07