Finding the Third Proportional to 748,239 and 1,636,446

Step by Step Solution

1. Step 1: Write the proportion equation
   748,239 : 1,636,446 = 1,636,446 : x
2. Step 2: Convert to fraction form
   748,239/1,636,446 = 1,636,446/x
3. Step 3: Cross multiply
   748,239x = 1,636,446 × 1,636,446
4. Step 4: Simplify right side
   748,239x = 2,677,955,510,916
5. Step 5: Solve for x
   x = 2,677,955,510,916/748,239
6. Step 6: Final answer
   x = 3,579,010.87