Finding the Third Proportional to 3,947,602 and 8,608,652

Step by Step Solution

1. Step 1: Write the proportion equation
   3,947,602 : 8,608,652 = 8,608,652 : x
2. Step 2: Convert to fraction form
   3,947,602/8,608,652 = 8,608,652/x
3. Step 3: Cross multiply
   3,947,602x = 8,608,652 × 8,608,652
4. Step 4: Simplify right side
   3,947,602x = 74,108,889,257,104
5. Step 5: Solve for x
   x = 74,108,889,257,104/3,947,602
6. Step 6: Final answer
   x = 18,773,141.08