Finding the Third Proportional to 1,238,387 and 2,529,258

Step by Step Solution

1. Step 1: Write the proportion equation
   1,238,387 : 2,529,258 = 2,529,258 : x
2. Step 2: Convert to fraction form
   1,238,387/2,529,258 = 2,529,258/x
3. Step 3: Cross multiply
   1,238,387x = 2,529,258 × 2,529,258
4. Step 4: Simplify right side
   1,238,387x = 6,397,146,030,564
5. Step 5: Solve for x
   x = 6,397,146,030,564/1,238,387
6. Step 6: Final answer
   x = 5,165,708.32