Finding the Third Proportional to 814,636 and 1,788,664

Step by Step Solution

1. Step 1: Write the proportion equation
   814,636 : 1,788,664 = 1,788,664 : x
2. Step 2: Convert to fraction form
   814,636/1,788,664 = 1,788,664/x
3. Step 3: Cross multiply
   814,636x = 1,788,664 × 1,788,664
4. Step 4: Simplify right side
   814,636x = 3,199,318,904,896
5. Step 5: Solve for x
   x = 3,199,318,904,896/814,636
6. Step 6: Final answer
   x = 3,927,298.70