Finding the Third Proportional to 2,129,253,921 and 4,633,443,072

Step by Step Solution

1. Step 1: Write the proportion equation
   2,129,253,921 : 4,633,443,072 = 4,633,443,072 : x
2. Step 2: Convert to fraction form
   2,129,253,921/4,633,443,072 = 4,633,443,072/x
3. Step 3: Cross multiply
   2,129,253,921x = 4,633,443,072 × 4,633,443,072
4. Step 4: Simplify right side
   2,129,253,921x = 21,468,794,701,464,797,184
5. Step 5: Solve for x
   x = 21,468,794,701,464,797,184/2,129,253,921
6. Step 6: Final answer
   x = 10,082,778,051.85