Finding the Third Proportional to 454,732 and 990,196

Step by Step Solution

1. Step 1: Write the proportion equation
   454,732 : 990,196 = 990,196 : x
2. Step 2: Convert to fraction form
   454,732/990,196 = 990,196/x
3. Step 3: Cross multiply
   454,732x = 990,196 × 990,196
4. Step 4: Simplify right side
   454,732x = 980,488,118,416
5. Step 5: Solve for x
   x = 980,488,118,416/454,732
6. Step 6: Final answer
   x = 2,156,188.96