Finding the Third Proportional to 3,973,249 and 8,581,580

Step by Step Solution

1. Step 1: Write the proportion equation
   3,973,249 : 8,581,580 = 8,581,580 : x
2. Step 2: Convert to fraction form
   3,973,249/8,581,580 = 8,581,580/x
3. Step 3: Cross multiply
   3,973,249x = 8,581,580 × 8,581,580
4. Step 4: Simplify right side
   3,973,249x = 73,643,515,296,400
5. Step 5: Solve for x
   x = 73,643,515,296,400/3,973,249
6. Step 6: Final answer
   x = 18,534,835.17