Finding the Third Proportional to 1,306,385 and 1,805,188

Step by Step Solution

1. Step 1: Write the proportion equation
   1,306,385 : 1,805,188 = 1,805,188 : x
2. Step 2: Convert to fraction form
   1,306,385/1,805,188 = 1,805,188/x
3. Step 3: Cross multiply
   1,306,385x = 1,805,188 × 1,805,188
4. Step 4: Simplify right side
   1,306,385x = 3,258,703,715,344
5. Step 5: Solve for x
   x = 3,258,703,715,344/1,306,385
6. Step 6: Final answer
   x = 2,494,443.61