Finding the Third Proportional to 456,044 and 989,960

Step by Step Solution

1. Step 1: Write the proportion equation
   456,044 : 989,960 = 989,960 : x
2. Step 2: Convert to fraction form
   456,044/989,960 = 989,960/x
3. Step 3: Cross multiply
   456,044x = 989,960 × 989,960
4. Step 4: Simplify right side
   456,044x = 980,020,801,600
5. Step 5: Solve for x
   x = 980,020,801,600/456,044
6. Step 6: Final answer
   x = 2,148,961.07