Finding the Third Proportional to 454,977 and 990,627.75

Step by Step Solution

1. Step 1: Write the proportion equation
   454,977 : 990,627.75 = 990,627.75 : x
2. Step 2: Convert to fraction form
   454,977/990,627.75 = 990,627.75/x
3. Step 3: Cross multiply
   454,977x = 990,627.75 × 990,627.75
4. Step 4: Simplify right side
   454,977x = 981,343,339,070.06
5. Step 5: Solve for x
   x = 981,343,339,070.06/454,977
6. Step 6: Final answer
   x = 2,156,907.58