Finding the Third Proportional to 3,687,059,970 and 5,390,610,604.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,687,059,970 : 5,390,610,604.50 = 5,390,610,604.50 : x
2. Step 2: Convert to fraction form
   3,687,059,970/5,390,610,604.50 = 5,390,610,604.50/x
3. Step 3: Cross multiply
   3,687,059,970x = 5,390,610,604.50 × 5,390,610,604.50
4. Step 4: Simplify right side
   3,687,059,970x = 29,058,682,689,347,854,336
5. Step 5: Solve for x
   x = 29,058,682,689,347,854,336/3,687,059,970
6. Step 6: Final answer
   x = 7,881,261,201.55