Finding the Third Proportional to 21,215,409,948 and 46,197,408,456

Step by Step Solution

1. Step 1: Write the proportion equation
   21,215,409,948 : 46,197,408,456 = 46,197,408,456 : x
2. Step 2: Convert to fraction form
   21,215,409,948/46,197,408,456 = 46,197,408,456/x
3. Step 3: Cross multiply
   21,215,409,948x = 46,197,408,456 × 46,197,408,456
4. Step 4: Simplify right side
   21,215,409,948x = 2,134,200,548,050,500,321,280
5. Step 5: Solve for x
   x = 2,134,200,548,050,500,321,280/21,215,409,948
6. Step 6: Final answer
   x = 100,596,714,995.45