Finding the Third Proportional to 603,616 and 1,279,188

Step by Step Solution

1. Step 1: Write the proportion equation
   603,616 : 1,279,188 = 1,279,188 : x
2. Step 2: Convert to fraction form
   603,616/1,279,188 = 1,279,188/x
3. Step 3: Cross multiply
   603,616x = 1,279,188 × 1,279,188
4. Step 4: Simplify right side
   603,616x = 1,636,321,939,344
5. Step 5: Solve for x
   x = 1,636,321,939,344/603,616
6. Step 6: Final answer
   x = 2,710,865.75