Finding the Third Proportional to 1,397,846 and 2,209,395

Step by Step Solution

1. Step 1: Write the proportion equation
   1,397,846 : 2,209,395 = 2,209,395 : x
2. Step 2: Convert to fraction form
   1,397,846/2,209,395 = 2,209,395/x
3. Step 3: Cross multiply
   1,397,846x = 2,209,395 × 2,209,395
4. Step 4: Simplify right side
   1,397,846x = 4,881,426,266,025
5. Step 5: Solve for x
   x = 4,881,426,266,025/1,397,846
6. Step 6: Final answer
   x = 3,492,105.90