Finding the Third Proportional to 603,620 and 1,279,196

Step by Step Solution

1. Step 1: Write the proportion equation
   603,620 : 1,279,196 = 1,279,196 : x
2. Step 2: Convert to fraction form
   603,620/1,279,196 = 1,279,196/x
3. Step 3: Cross multiply
   603,620x = 1,279,196 × 1,279,196
4. Step 4: Simplify right side
   603,620x = 1,636,342,406,416
5. Step 5: Solve for x
   x = 1,636,342,406,416/603,620
6. Step 6: Final answer
   x = 2,710,881.69