Finding the Third Proportional to 3,980,294 and 8,705,245

Step by Step Solution

1. Step 1: Write the proportion equation
   3,980,294 : 8,705,245 = 8,705,245 : x
2. Step 2: Convert to fraction form
   3,980,294/8,705,245 = 8,705,245/x
3. Step 3: Cross multiply
   3,980,294x = 8,705,245 × 8,705,245
4. Step 4: Simplify right side
   3,980,294x = 75,781,290,510,025
5. Step 5: Solve for x
   x = 75,781,290,510,025/3,980,294
6. Step 6: Final answer
   x = 19,039,118.85