Finding the Third Proportional to 21,337,408 and 30,490,694

Step by Step Solution

1. Step 1: Write the proportion equation
   21,337,408 : 30,490,694 = 30,490,694 : x
2. Step 2: Convert to fraction form
   21,337,408/30,490,694 = 30,490,694/x
3. Step 3: Cross multiply
   21,337,408x = 30,490,694 × 30,490,694
4. Step 4: Simplify right side
   21,337,408x = 929,682,420,601,636
5. Step 5: Solve for x
   x = 929,682,420,601,636/21,337,408
6. Step 6: Final answer
   x = 43,570,541.49