Finding the Third Proportional to 630,636 and 979,116

Step by Step Solution

1. Step 1: Write the proportion equation
   630,636 : 979,116 = 979,116 : x
2. Step 2: Convert to fraction form
   630,636/979,116 = 979,116/x
3. Step 3: Cross multiply
   630,636x = 979,116 × 979,116
4. Step 4: Simplify right side
   630,636x = 958,668,141,456
5. Step 5: Solve for x
   x = 958,668,141,456/630,636
6. Step 6: Final answer
   x = 1,520,160.82