Finding the Third Proportional to 1,990,136 and 4,352,602

Step by Step Solution

1. Step 1: Write the proportion equation
   1,990,136 : 4,352,602 = 4,352,602 : x
2. Step 2: Convert to fraction form
   1,990,136/4,352,602 = 4,352,602/x
3. Step 3: Cross multiply
   1,990,136x = 4,352,602 × 4,352,602
4. Step 4: Simplify right side
   1,990,136x = 18,945,144,170,404
5. Step 5: Solve for x
   x = 18,945,144,170,404/1,990,136
6. Step 6: Final answer
   x = 9,519,522.37