Finding the Third Proportional to 619,713 and 1,329,822

Step by Step Solution

1. Step 1: Write the proportion equation
   619,713 : 1,329,822 = 1,329,822 : x
2. Step 2: Convert to fraction form
   619,713/1,329,822 = 1,329,822/x
3. Step 3: Cross multiply
   619,713x = 1,329,822 × 1,329,822
4. Step 4: Simplify right side
   619,713x = 1,768,426,551,684
5. Step 5: Solve for x
   x = 1,768,426,551,684/619,713
6. Step 6: Final answer
   x = 2,853,621.84