Finding the Third Proportional to 456,004.69 and 989,890.88

Step by Step Solution

1. Step 1: Write the proportion equation
   456,004.69 : 989,890.88 = 989,890.88 : x
2. Step 2: Convert to fraction form
   456,004.69/989,890.88 = 989,890.88/x
3. Step 3: Cross multiply
   456,004.69x = 989,890.88 × 989,890.88
4. Step 4: Simplify right side
   456,004.69x = 979,883,944,408.27
5. Step 5: Solve for x
   x = 979,883,944,408.27/456,004.69
6. Step 6: Final answer
   x = 2,148,846.21