Finding the Third Proportional to 4,142,214 and 8,860,122

Step by Step Solution

1. Step 1: Write the proportion equation
   4,142,214 : 8,860,122 = 8,860,122 : x
2. Step 2: Convert to fraction form
   4,142,214/8,860,122 = 8,860,122/x
3. Step 3: Cross multiply
   4,142,214x = 8,860,122 × 8,860,122
4. Step 4: Simplify right side
   4,142,214x = 78,501,761,854,884
5. Step 5: Solve for x
   x = 78,501,761,854,884/4,142,214
6. Step 6: Final answer
   x = 18,951,643.22