Finding the Third Proportional to 1,238,978 and 1,744,781

Step by Step Solution

1. Step 1: Write the proportion equation
   1,238,978 : 1,744,781 = 1,744,781 : x
2. Step 2: Convert to fraction form
   1,238,978/1,744,781 = 1,744,781/x
3. Step 3: Cross multiply
   1,238,978x = 1,744,781 × 1,744,781
4. Step 4: Simplify right side
   1,238,978x = 3,044,260,737,961
5. Step 5: Solve for x
   x = 3,044,260,737,961/1,238,978
6. Step 6: Final answer
   x = 2,457,074.09