Finding the Third Proportional to 636,213 and 1,346,049

Step by Step Solution

1. Step 1: Write the proportion equation
   636,213 : 1,346,049 = 1,346,049 : x
2. Step 2: Convert to fraction form
   636,213/1,346,049 = 1,346,049/x
3. Step 3: Cross multiply
   636,213x = 1,346,049 × 1,346,049
4. Step 4: Simplify right side
   636,213x = 1,811,847,910,401
5. Step 5: Solve for x
   x = 1,811,847,910,401/636,213
6. Step 6: Final answer
   x = 2,847,863.70