Finding the Third Proportional to 8,578,015 and 18,474,061

Step by Step Solution

1. Step 1: Write the proportion equation
   8,578,015 : 18,474,061 = 18,474,061 : x
2. Step 2: Convert to fraction form
   8,578,015/18,474,061 = 18,474,061/x
3. Step 3: Cross multiply
   8,578,015x = 18,474,061 × 18,474,061
4. Step 4: Simplify right side
   8,578,015x = 341,290,929,831,721
5. Step 5: Solve for x
   x = 341,290,929,831,721/8,578,015
6. Step 6: Final answer
   x = 39,786,702.38