Finding the Third Proportional to 4,074,450 and 8,634,588

Step by Step Solution

1. Step 1: Write the proportion equation
   4,074,450 : 8,634,588 = 8,634,588 : x
2. Step 2: Convert to fraction form
   4,074,450/8,634,588 = 8,634,588/x
3. Step 3: Cross multiply
   4,074,450x = 8,634,588 × 8,634,588
4. Step 4: Simplify right side
   4,074,450x = 74,556,109,929,744
5. Step 5: Solve for x
   x = 74,556,109,929,744/4,074,450
6. Step 6: Final answer
   x = 18,298,447.63