Finding the Third Proportional to 4,039,194 and 8,645,760

Step by Step Solution

1. Step 1: Write the proportion equation
   4,039,194 : 8,645,760 = 8,645,760 : x
2. Step 2: Convert to fraction form
   4,039,194/8,645,760 = 8,645,760/x
3. Step 3: Cross multiply
   4,039,194x = 8,645,760 × 8,645,760
4. Step 4: Simplify right side
   4,039,194x = 74,749,165,977,600
5. Step 5: Solve for x
   x = 74,749,165,977,600/4,039,194
6. Step 6: Final answer
   x = 18,505,960.84