Finding the Third Proportional to 856,998 and 1,636,236

Step by Step Solution

1. Step 1: Write the proportion equation
   856,998 : 1,636,236 = 1,636,236 : x
2. Step 2: Convert to fraction form
   856,998/1,636,236 = 1,636,236/x
3. Step 3: Cross multiply
   856,998x = 1,636,236 × 1,636,236
4. Step 4: Simplify right side
   856,998x = 2,677,268,247,696
5. Step 5: Solve for x
   x = 2,677,268,247,696/856,998
6. Step 6: Final answer
   x = 3,124,007.58