Finding the Third Proportional to 636,861 and 1,022,637

Step by Step Solution

1. Step 1: Write the proportion equation
   636,861 : 1,022,637 = 1,022,637 : x
2. Step 2: Convert to fraction form
   636,861/1,022,637 = 1,022,637/x
3. Step 3: Cross multiply
   636,861x = 1,022,637 × 1,022,637
4. Step 4: Simplify right side
   636,861x = 1,045,786,433,769
5. Step 5: Solve for x
   x = 1,045,786,433,769/636,861
6. Step 6: Final answer
   x = 1,642,095.27