Finding the Third Proportional to 451,284 and 991,140.75

Step by Step Solution

1. Step 1: Write the proportion equation
   451,284 : 991,140.75 = 991,140.75 : x
2. Step 2: Convert to fraction form
   451,284/991,140.75 = 991,140.75/x
3. Step 3: Cross multiply
   451,284x = 991,140.75 × 991,140.75
4. Step 4: Simplify right side
   451,284x = 982,359,986,310.56
5. Step 5: Solve for x
   x = 982,359,986,310.56/451,284
6. Step 6: Final answer
   x = 2,176,811.02