Finding the Third Proportional to 838,584 and 1,328,508

Step by Step Solution

1. Step 1: Write the proportion equation
   838,584 : 1,328,508 = 1,328,508 : x
2. Step 2: Convert to fraction form
   838,584/1,328,508 = 1,328,508/x
3. Step 3: Cross multiply
   838,584x = 1,328,508 × 1,328,508
4. Step 4: Simplify right side
   838,584x = 1,764,933,506,064
5. Step 5: Solve for x
   x = 1,764,933,506,064/838,584
6. Step 6: Final answer
   x = 2,104,659.17