Finding the Third Proportional to 2,290,689 and 4,523,556

Step by Step Solution

1. Step 1: Write the proportion equation
   2,290,689 : 4,523,556 = 4,523,556 : x
2. Step 2: Convert to fraction form
   2,290,689/4,523,556 = 4,523,556/x
3. Step 3: Cross multiply
   2,290,689x = 4,523,556 × 4,523,556
4. Step 4: Simplify right side
   2,290,689x = 20,462,558,885,136
5. Step 5: Solve for x
   x = 20,462,558,885,136/2,290,689
6. Step 6: Final answer
   x = 8,932,927.55