Finding the Third Proportional to 412,797 and 843,090

Step by Step Solution

1. Step 1: Write the proportion equation
   412,797 : 843,090 = 843,090 : x
2. Step 2: Convert to fraction form
   412,797/843,090 = 843,090/x
3. Step 3: Cross multiply
   412,797x = 843,090 × 843,090
4. Step 4: Simplify right side
   412,797x = 710,800,748,100
5. Step 5: Solve for x
   x = 710,800,748,100/412,797
6. Step 6: Final answer
   x = 1,721,913.55