Finding the Third Proportional to 856,994 and 1,636,228

Step by Step Solution

1. Step 1: Write the proportion equation
   856,994 : 1,636,228 = 1,636,228 : x
2. Step 2: Convert to fraction form
   856,994/1,636,228 = 1,636,228/x
3. Step 3: Cross multiply
   856,994x = 1,636,228 × 1,636,228
4. Step 4: Simplify right side
   856,994x = 2,677,242,067,984
5. Step 5: Solve for x
   x = 2,677,242,067,984/856,994
6. Step 6: Final answer
   x = 3,123,991.61