Finding the Third Proportional to 609,407 and 1,320,506

Step by Step Solution

1. Step 1: Write the proportion equation
   609,407 : 1,320,506 = 1,320,506 : x
2. Step 2: Convert to fraction form
   609,407/1,320,506 = 1,320,506/x
3. Step 3: Cross multiply
   609,407x = 1,320,506 × 1,320,506
4. Step 4: Simplify right side
   609,407x = 1,743,736,096,036
5. Step 5: Solve for x
   x = 1,743,736,096,036/609,407
6. Step 6: Final answer
   x = 2,861,365.39