Finding the Third Proportional to 456,338,920 and 996,300,920

Step by Step Solution

1. Step 1: Write the proportion equation
   456,338,920 : 996,300,920 = 996,300,920 : x
2. Step 2: Convert to fraction form
   456,338,920/996,300,920 = 996,300,920/x
3. Step 3: Cross multiply
   456,338,920x = 996,300,920 × 996,300,920
4. Step 4: Simplify right side
   456,338,920x = 992,615,523,192,846,336
5. Step 5: Solve for x
   x = 992,615,523,192,846,336/456,338,920
6. Step 6: Final answer
   x = 2,175,171,741.20