Finding the Third Proportional to 609,414 and 1,320,528

Step by Step Solution

1. Step 1: Write the proportion equation
   609,414 : 1,320,528 = 1,320,528 : x
2. Step 2: Convert to fraction form
   609,414/1,320,528 = 1,320,528/x
3. Step 3: Cross multiply
   609,414x = 1,320,528 × 1,320,528
4. Step 4: Simplify right side
   609,414x = 1,743,794,198,784
5. Step 5: Solve for x
   x = 1,743,794,198,784/609,414
6. Step 6: Final answer
   x = 2,861,427.86