Finding the Third Proportional to 1,238,328 and 2,529,144

Step by Step Solution

1. Step 1: Write the proportion equation
   1,238,328 : 2,529,144 = 2,529,144 : x
2. Step 2: Convert to fraction form
   1,238,328/2,529,144 = 2,529,144/x
3. Step 3: Cross multiply
   1,238,328x = 2,529,144 × 2,529,144
4. Step 4: Simplify right side
   1,238,328x = 6,396,569,372,736
5. Step 5: Solve for x
   x = 6,396,569,372,736/1,238,328
6. Step 6: Final answer
   x = 5,165,488.77