Finding the Third Proportional to 8,485,992 and 18,892,724

Step by Step Solution

1. Step 1: Write the proportion equation
   8,485,992 : 18,892,724 = 18,892,724 : x
2. Step 2: Convert to fraction form
   8,485,992/18,892,724 = 18,892,724/x
3. Step 3: Cross multiply
   8,485,992x = 18,892,724 × 18,892,724
4. Step 4: Simplify right side
   8,485,992x = 356,935,020,140,176
5. Step 5: Solve for x
   x = 356,935,020,140,176/8,485,992
6. Step 6: Final answer
   x = 42,061,672.95