Finding the Third Proportional to 2,129,253,889 and 4,633,443,009

Step by Step Solution

1. Step 1: Write the proportion equation
   2,129,253,889 : 4,633,443,009 = 4,633,443,009 : x
2. Step 2: Convert to fraction form
   2,129,253,889/4,633,443,009 = 4,633,443,009/x
3. Step 3: Cross multiply
   2,129,253,889x = 4,633,443,009 × 4,633,443,009
4. Step 4: Simplify right side
   2,129,253,889x = 21,468,794,117,650,972,672
5. Step 5: Solve for x
   x = 21,468,794,117,650,972,672/2,129,253,889
6. Step 6: Final answer
   x = 10,082,777,929.19