Finding the Third Proportional to 1,842,978 and 2,790,226

Step by Step Solution

1. Step 1: Write the proportion equation
   1,842,978 : 2,790,226 = 2,790,226 : x
2. Step 2: Convert to fraction form
   1,842,978/2,790,226 = 2,790,226/x
3. Step 3: Cross multiply
   1,842,978x = 2,790,226 × 2,790,226
4. Step 4: Simplify right side
   1,842,978x = 7,785,361,131,076
5. Step 5: Solve for x
   x = 7,785,361,131,076/1,842,978
6. Step 6: Final answer
   x = 4,224,337.53