Finding the Third Proportional to 989,528 and 2,118,976

Step by Step Solution

1. Step 1: Write the proportion equation
   989,528 : 2,118,976 = 2,118,976 : x
2. Step 2: Convert to fraction form
   989,528/2,118,976 = 2,118,976/x
3. Step 3: Cross multiply
   989,528x = 2,118,976 × 2,118,976
4. Step 4: Simplify right side
   989,528x = 4,490,059,288,576
5. Step 5: Solve for x
   x = 4,490,059,288,576/989,528
6. Step 6: Final answer
   x = 4,537,576.79