Finding the Third Proportional to 989,738 and 2,119,444

Step by Step Solution

1. Step 1: Write the proportion equation
   989,738 : 2,119,444 = 2,119,444 : x
2. Step 2: Convert to fraction form
   989,738/2,119,444 = 2,119,444/x
3. Step 3: Cross multiply
   989,738x = 2,119,444 × 2,119,444
4. Step 4: Simplify right side
   989,738x = 4,492,042,869,136
5. Step 5: Solve for x
   x = 4,492,042,869,136/989,738
6. Step 6: Final answer
   x = 4,538,618.17