Finding the Third Proportional to 598,486 and 1,309,596

Step by Step Solution

1. Step 1: Write the proportion equation
   598,486 : 1,309,596 = 1,309,596 : x
2. Step 2: Convert to fraction form
   598,486/1,309,596 = 1,309,596/x
3. Step 3: Cross multiply
   598,486x = 1,309,596 × 1,309,596
4. Step 4: Simplify right side
   598,486x = 1,715,041,683,216
5. Step 5: Solve for x
   x = 1,715,041,683,216/598,486
6. Step 6: Final answer
   x = 2,865,633.75