Finding the Third Proportional to 686,822 and 1,050,648

Step by Step Solution

1. Step 1: Write the proportion equation
   686,822 : 1,050,648 = 1,050,648 : x
2. Step 2: Convert to fraction form
   686,822/1,050,648 = 1,050,648/x
3. Step 3: Cross multiply
   686,822x = 1,050,648 × 1,050,648
4. Step 4: Simplify right side
   686,822x = 1,103,861,219,904
5. Step 5: Solve for x
   x = 1,103,861,219,904/686,822
6. Step 6: Final answer
   x = 1,607,201.31