Finding the Third Proportional to 3,734,145 and 8,191,170

Step by Step Solution

1. Step 1: Write the proportion equation
   3,734,145 : 8,191,170 = 8,191,170 : x
2. Step 2: Convert to fraction form
   3,734,145/8,191,170 = 8,191,170/x
3. Step 3: Cross multiply
   3,734,145x = 8,191,170 × 8,191,170
4. Step 4: Simplify right side
   3,734,145x = 67,095,265,968,900
5. Step 5: Solve for x
   x = 67,095,265,968,900/3,734,145
6. Step 6: Final answer
   x = 17,968,039.80