Finding the Third Proportional to 1,940,568,921 and 4,221,146,034

Step by Step Solution

1. Step 1: Write the proportion equation
   1,940,568,921 : 4,221,146,034 = 4,221,146,034 : x
2. Step 2: Convert to fraction form
   1,940,568,921/4,221,146,034 = 4,221,146,034/x
3. Step 3: Cross multiply
   1,940,568,921x = 4,221,146,034 × 4,221,146,034
4. Step 4: Simplify right side
   1,940,568,921x = 17,818,073,840,353,929,216
5. Step 5: Solve for x
   x = 17,818,073,840,353,929,216/1,940,568,921
6. Step 6: Final answer
   x = 9,181,881,482.04