Finding the Third Proportional to 637,443 and 1,390,797

Step by Step Solution

1. Step 1: Write the proportion equation
   637,443 : 1,390,797 = 1,390,797 : x
2. Step 2: Convert to fraction form
   637,443/1,390,797 = 1,390,797/x
3. Step 3: Cross multiply
   637,443x = 1,390,797 × 1,390,797
4. Step 4: Simplify right side
   637,443x = 1,934,316,295,209
5. Step 5: Solve for x
   x = 1,934,316,295,209/637,443
6. Step 6: Final answer
   x = 3,034,492.96