Finding the Third Proportional to 4,210,092 and 8,860,308

Step by Step Solution

1. Step 1: Write the proportion equation
   4,210,092 : 8,860,308 = 8,860,308 : x
2. Step 2: Convert to fraction form
   4,210,092/8,860,308 = 8,860,308/x
3. Step 3: Cross multiply
   4,210,092x = 8,860,308 × 8,860,308
4. Step 4: Simplify right side
   4,210,092x = 78,505,057,854,864
5. Step 5: Solve for x
   x = 78,505,057,854,864/4,210,092
6. Step 6: Final answer
   x = 18,646,874.67