Finding the Third Proportional to 3,941,692 and 8,490,628

Step by Step Solution

1. Step 1: Write the proportion equation
   3,941,692 : 8,490,628 = 8,490,628 : x
2. Step 2: Convert to fraction form
   3,941,692/8,490,628 = 8,490,628/x
3. Step 3: Cross multiply
   3,941,692x = 8,490,628 × 8,490,628
4. Step 4: Simplify right side
   3,941,692x = 72,090,763,834,384
5. Step 5: Solve for x
   x = 72,090,763,834,384/3,941,692
6. Step 6: Final answer
   x = 18,289,294.00