Finding the Third Proportional to 4,059,512 and 8,731,384

Step by Step Solution

1. Step 1: Write the proportion equation
   4,059,512 : 8,731,384 = 8,731,384 : x
2. Step 2: Convert to fraction form
   4,059,512/8,731,384 = 8,731,384/x
3. Step 3: Cross multiply
   4,059,512x = 8,731,384 × 8,731,384
4. Step 4: Simplify right side
   4,059,512x = 76,237,066,555,456
5. Step 5: Solve for x
   x = 76,237,066,555,456/4,059,512
6. Step 6: Final answer
   x = 18,779,859.88