Finding the Third Proportional to 1,939,818 and 4,189,380

Step by Step Solution

1. Step 1: Write the proportion equation
   1,939,818 : 4,189,380 = 4,189,380 : x
2. Step 2: Convert to fraction form
   1,939,818/4,189,380 = 4,189,380/x
3. Step 3: Cross multiply
   1,939,818x = 4,189,380 × 4,189,380
4. Step 4: Simplify right side
   1,939,818x = 17,550,904,784,400
5. Step 5: Solve for x
   x = 17,550,904,784,400/1,939,818
6. Step 6: Final answer
   x = 9,047,706.94