Finding the Third Proportional to 3,929,355 and 8,589,158

Step by Step Solution

1. Step 1: Write the proportion equation
   3,929,355 : 8,589,158 = 8,589,158 : x
2. Step 2: Convert to fraction form
   3,929,355/8,589,158 = 8,589,158/x
3. Step 3: Cross multiply
   3,929,355x = 8,589,158 × 8,589,158
4. Step 4: Simplify right side
   3,929,355x = 73,773,635,148,964
5. Step 5: Solve for x
   x = 73,773,635,148,964/3,929,355
6. Step 6: Final answer
   x = 18,774,998.73