Finding the Third Proportional to 603,632 and 1,279,221

Step by Step Solution

1. Step 1: Write the proportion equation
   603,632 : 1,279,221 = 1,279,221 : x
2. Step 2: Convert to fraction form
   603,632/1,279,221 = 1,279,221/x
3. Step 3: Cross multiply
   603,632x = 1,279,221 × 1,279,221
4. Step 4: Simplify right side
   603,632x = 1,636,406,366,841
5. Step 5: Solve for x
   x = 1,636,406,366,841/603,632
6. Step 6: Final answer
   x = 2,710,933.76