Finding the Third Proportional to 454,342 and 991,196

Step by Step Solution

1. Step 1: Write the proportion equation
   454,342 : 991,196 = 991,196 : x
2. Step 2: Convert to fraction form
   454,342/991,196 = 991,196/x
3. Step 3: Cross multiply
   454,342x = 991,196 × 991,196
4. Step 4: Simplify right side
   454,342x = 982,469,510,416
5. Step 5: Solve for x
   x = 982,469,510,416/454,342
6. Step 6: Final answer
   x = 2,162,400.81