Finding the Third Proportional to 1,939,670 and 4,215,084

Step by Step Solution

1. Step 1: Write the proportion equation
   1,939,670 : 4,215,084 = 4,215,084 : x
2. Step 2: Convert to fraction form
   1,939,670/4,215,084 = 4,215,084/x
3. Step 3: Cross multiply
   1,939,670x = 4,215,084 × 4,215,084
4. Step 4: Simplify right side
   1,939,670x = 17,766,933,127,056
5. Step 5: Solve for x
   x = 17,766,933,127,056/1,939,670
6. Step 6: Final answer
   x = 9,159,771.06