Finding the Third Proportional to 3,737,170 and 8,172,272

Step by Step Solution

1. Step 1: Write the proportion equation
   3,737,170 : 8,172,272 = 8,172,272 : x
2. Step 2: Convert to fraction form
   3,737,170/8,172,272 = 8,172,272/x
3. Step 3: Cross multiply
   3,737,170x = 8,172,272 × 8,172,272
4. Step 4: Simplify right side
   3,737,170x = 66,786,029,641,984
5. Step 5: Solve for x
   x = 66,786,029,641,984/3,737,170
6. Step 6: Final answer
   x = 17,870,749.70