Finding the Third Proportional to 101,408,612 and 221,400,140

Step by Step Solution

1. Step 1: Write the proportion equation
   101,408,612 : 221,400,140 = 221,400,140 : x
2. Step 2: Convert to fraction form
   101,408,612/221,400,140 = 221,400,140/x
3. Step 3: Cross multiply
   101,408,612x = 221,400,140 × 221,400,140
4. Step 4: Simplify right side
   101,408,612x = 49,018,021,992,019,600
5. Step 5: Solve for x
   x = 49,018,021,992,019,600/101,408,612
6. Step 6: Final answer
   x = 483,371,392.48