Finding the Third Proportional to 142,408,966 and 292,367,456

Step by Step Solution

1. Step 1: Write the proportion equation
   142,408,966 : 292,367,456 = 292,367,456 : x
2. Step 2: Convert to fraction form
   142,408,966/292,367,456 = 292,367,456/x
3. Step 3: Cross multiply
   142,408,966x = 292,367,456 × 292,367,456
4. Step 4: Simplify right side
   142,408,966x = 85,478,729,327,911,936
5. Step 5: Solve for x
   x = 85,478,729,327,911,936/142,408,966
6. Step 6: Final answer
   x = 600,234,182.78