Finding the Third Proportional to 4,059,624 and 8,731,608

Step by Step Solution

1. Step 1: Write the proportion equation
   4,059,624 : 8,731,608 = 8,731,608 : x
2. Step 2: Convert to fraction form
   4,059,624/8,731,608 = 8,731,608/x
3. Step 3: Cross multiply
   4,059,624x = 8,731,608 × 8,731,608
4. Step 4: Simplify right side
   4,059,624x = 76,240,978,265,664
5. Step 5: Solve for x
   x = 76,240,978,265,664/4,059,624
6. Step 6: Final answer
   x = 18,780,305.34