Finding the Third Proportional to 4,047,380 and 8,619,118

Step by Step Solution

1. Step 1: Write the proportion equation
   4,047,380 : 8,619,118 = 8,619,118 : x
2. Step 2: Convert to fraction form
   4,047,380/8,619,118 = 8,619,118/x
3. Step 3: Cross multiply
   4,047,380x = 8,619,118 × 8,619,118
4. Step 4: Simplify right side
   4,047,380x = 74,289,195,097,924
5. Step 5: Solve for x
   x = 74,289,195,097,924/4,047,380
6. Step 6: Final answer
   x = 18,354,885.16